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I. Simplify the following:

1. (x5)(x6) = ________


2.

x

5y

4

x

5y

4

= _________

3. (y-2)

2 = _______________

4. x

16y

6

x

6y

7

= ________

II. Find the product of the following:

1. 5r5 ( 6r – 3 ) = ______________________

2. 6 ( 7n2 + n – 2 ) = _________________________

3. ( 4b2 + 7b + 6 )( 8b + 1 ) = ________________________

III. Find the quotient of the following:

1. 225x5 y3 ÷ 15xy

2. ( 56y3 + 49y2 ) ÷ (-7y) = ____________________________

3. ( 10r2 – 79r + 63 ) ÷ ( r – 7 ) = ______________________________


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Sagot :

III

1. 225x5 y3 ÷ 15xy

=1275y3÷15xy

=85y3

=255

2. ( 56y3 + 49y2 ) ÷ (-7y) =

=(168y+98y) ÷ (-7y)

=266y2÷ -7y

=-38y2

3. ( 10r2 – 79r + 63 ) ÷ ( r – 7 ) =

=132r2÷ r-7

=−18.85714286 r2

II. Find the product of the following:

II. Find the product of the following:1. 5r5 ( 6r – 3 ) = 25r × 3r = 75r2

2. 6 ( 7n2 + n – 2 ) = (42n2 + 6n - 12)= 36n2

3. ( 4b2 + 7b + 6 )( 8b + 1 ) = (17b2)(9b)= 153b2