Question

simplify the following expression

x² - 21x + 90
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Answer 1

x²-15x-6x+90

x(x-15) -6(x-15)

(x-6)=0. (x-15)=0

X=6. X= 15

Hope it helps

Answer 2

Step-by-step explanation:

x2 -21x+90

x2-15x-6x+90

x(x-15)-6(x-15)

(x-15)(x-6)