Question

Change this equation to standard form. Show work

Y = (x + 7) ^2 - 3

Answer 1

Y=x^2+7^2-3
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Answer 2

Y = (x + 7) ^2 - 3

Needs to end up in form

Y=ax^2+bx+c

(X+7)^2=(x+7)(x+7)-3

Now do foil method

Xx + x(7)+7x+7(7)-3

Combine like terms

Y=x^2+14x+49-3

Simplify

Y= x^2+14x+46