Question

Check all the apply. X^2-6x+40=6x+5

A. -6
B. -5
C. 6
D. 5
E. 7

Answer 1

D. 5

E. 7

Explanation:

X^2-6x+40=6x+5

Bring all the terms to one side

Subtract 6x from each side

X^2-6x-6x+40=6x-6x+5

x^2 -12x+40 = 5

Subtract 5 from each side

x^2 -12x+40-5 = 5-5

x^2 -12x+35 =0

Factor

(x-5) (x-7)=0

Using the zero product property

x-5=0 x-7=0

x=5 x=7