(x-5)² - ( 5x – 25) - 24
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Answer:
(x-5)² - 5(x- 5) -24
let (x-5) be y
y² -5y -24= 0
y² -8y + 3y - 24 =0
y(y-8) +3(y-8) = 0
(y+3)(y-8)=0
y+3 =0
y= -3
y-8=0
y= 8
x-5 =-3
x= -3+5
=2
x-5 =8
x= 8+5
= 13
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