Question

Y = -4(x + 6)(x - 8) How do you write this in standard form?

Answer 1

Answer:

$y = -4x^2 + 8x + 192$

Step-by-step explanation:

Hi there!

Standard form: $y=ax^2+bx+c$

$y = -4(x + 6)(x - 8)$

Use the distributive property to multiply (x+6) and (x-8)

$y = -4(x(x - 8) + 6(x - 8))\\y = -4(x^2 - 8x + 6x - 48)\\y = -4(x^2 - 2x - 48)$

Multiply the parentheses by -4

$y = -4x^2 + 8x + 192$

I hope this helps!