This is josh's solution for the equation: x^2-6x-7=0
x^2-6x-7=0
x^2-6x=7
x^2-6x+9=7+9
(x-3)^2=16
x-3=16
x=19
x-3=-16
x=-13
is josh's solution correct? explain.

josh's solution is incorrect.

correct solution is stated below and   x = 7 and -1

step-by-step explanation:

given: josh's solution for the equation

we have to check the solution of josh

no , the solution of josh is not correct.

in third step

where he has obtained

he simplify by taking square roots both side,

then he forgot to take which is ± 4.

so the correct solution is as follows,

thus, and

solving , we get,

and

thus, we obtained x = 7 and -1

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source

c: lkllmn.

hope it's you