Question

Solve -x^2+8x-7 and explain how? :)

Answer 1

is it =0

Answer 2

Multiply the equation by -1 to make x positive

Answer 3

Yes it is =0 sorry!

Answer 4

Multiply the equation by -1

Answer 5

X^2-8x+7=0
What multiplies to 7 and ads to -8?

Answer 6

We get
x^2-8x+7=0

Answer 7

Okay so then it'd be x^2-8x+7=0, then what?

Answer 8

@oliviaellen23 i m working it out

Answer 9

(X-7)(x-1)

Answer 10

Oh so you just factor! Okay! Thank you guys! :)

Answer 11

x^2-7x-1x+7=0
x(x-7)-1(x-7)=0
(x-1)(x-7)=0
So either (x-1)=0 ------> Therefore x = +1
or (x-7)=0 -------------> Therefore x= +7

Answer 12

It Says solve so we have to find the value of x not just factor the equation

Answer 13

(X-7)=0. (X-1)=0
Solve for x

Answer 14

If u don't understand anything let me know.