Question

write the quadrict function in standard form y=(x+1)^2-8

Answer 1

The standard form is y=ax^2+bx+x

Answer 2

Try to take it to that form

Answer 3

can u?

Answer 4

nope still dont get it

Answer 5

Hint: You must foil (x+1)^2

Answer 6

how!!!!!!!

Answer 7

So (x+1)^2 is the same thing as (x+1)(x+1)

FOIL stands for first-outer-inner-last

first- x*x=x^2
outer x*1=x
inner x*1=x
last 1*1=1

and you cannot forget the minus 8. So at this point you just have to combine like terms

Answer 8

so i still dont get it ...

Answer 9

well the final answer is (X^2)-2x-7. Do you not understand how to foil? or is it something else?