IDNStudy.com, ang iyong gabay para sa maaasahan at eksaktong mga sagot. Alamin ang mga detalyadong sagot mula sa mga bihasang miyembro ng aming komunidad na sumasaklaw sa iba't ibang paksa para sa lahat ng iyong pangangailangan.
12
Step-by-step explanation:
The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find the two numbers.
Answer
We have,
Let the large number is =x
Square of smaller number is =8x
Now, According to given question,
x^2 −8x=180
⇒x^2 −8x−180=0
⇒x^2 −(18−10)x−180=0
⇒x^2−18x+10x−180=0
⇒x(x−18)+10(x−18)=0
⇒(x−18)(x+10)=0
⇒x−18=0,x+10=0
⇒x=18,x=−10
⇒x=−10,18
Either
x=−10 and x=18
x=18 is true (Positive value)
Now, square of small number
=18x=18×8=144
144
=12