Answer:
B. 7x - 2 It’s simple polynomial division.
EXPLANATION :
b) 7x-2, Since Area=length times width, width will be area divided by length. Just perform long division, like you would with a numerical problem, ie, (3x+4) into (21x^2 +22x-8). First step is 3x into 21x^2 is 7x. Now multiply 7x times the total divisor (3x+4). giving 21x^2+28x. Subtract this from the 21x^2+22x yields -6x. Now bring down the -8, such that you have (-6x-8). Divide this by the first divisor term (3x). It will go -2 times. Now multiply -2 times the divisor (3x+4) to get (-6x-8). subtract this from the -6x-8 remainder from the first step and the result is 0, meaning that the divis
Choice B 7x-2. why?
Area = length *width
21x²+22x-8 = (3x+4)*width
Then do the division.
The area of a rectangle is 24 cm 2 . The width is 2 cm less than the length. How do I find the length and width of the rectangle?
The area of a rectangle is 40 sq. cm. What is its length when it is 3 more than its width?
A rectangle has an area of 9x2 – 3x square units. The width of the rectangle is 3x units. What is the length?
The area of the rectangle is 21x^2+22x-8=21x^2+28x-6x-8=7x(3x+4)-2(3x+4)=(3x+4)(7x-2),
Therefore, if one side is (3x+4) the other side is (7x-2), B is the ans
The area of a rectangle is 21x² + 22x-8 square centimeters. It's length is 3x + 4 centimeters. What is it width? A.7x-1 B.7x-2. C.7x-3. D.7-4
B. 7x-2. It’s straight multiplication using the FOIL method.
The area of a rectangle is 24 cm 2 . The width is 2 cm less than the length. How do I find the length and width of the rectangle?
The area of a rectangle is 40 sq. cm. What is its length when it is 3 more than its width?
A rectangle has an area of 9x2 – 3x square units. The width of the rectangle is 3x units. What is the length?
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The length of a rectangle is 1 m more than twice the width, and the area of the rectangle is 66 m^2. What are the dimensions of the rectangular?
The area of a rectangle is 24 cm 2 . The width is 2 cm less than the length. How do I find the length and width of the rectangle?
The area of a rectangle is 40 sq. cm. What is its length when it is 3 more than its width?
A rectangle has an area of 9x2 – 3x square units. The width of the rectangle is 3x units. What is the length?
The length of a rectangle is three times its width. The area of the rectangle is 192 square centimeters. What are the dimensions of the rectangles?
The lenght of a tarpaulin is 3ft. more than thrice its width and its area is 126ft². What is the length of the tarpaulin?
The length of a rectangle is 6 cm and the width is 4 cm. If the length is greater by 2, what should the width be so that the new rectangle has the same area as the first one?
The length of a rectangle is 1 m more than twice the width, and the area of the rectangle is 66 m^2. What are the dimensions of the rectangular?
Two rectangles have the same area of 24 cm². The second rectangle is 4 cm shorter and 1 cm wider than the first. What is the length and breadth of the first rectangle?
When the length of the rectangle is divided by 4 and the width is tripled, the area of the new rectangle is the area of the original one multiplied by________?
The sides of a rectangle are in a ratio of 3:4. The length of the diagonal rectangle is 20 cm. What is the content of the rectangle?
Step-by-step explanation:
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