F(x)=-2(x-3)(x+5) convert quadratic functions to standard form

Question

asked Nov 5, 2020 142k views

1 Answer

Beeb · Answer 1 · 2020-11-09T18:16:14+0000

Answer:

The answer is: f(x) = -2x^2 - 4x + 30

Explanation:

Given:

f(x)=-2(x-3)(x+5)

Solve (x-3)(x+5) first, then multiply by -2:

f(x) = -2[(x - 3)(x + 5)]

f(x) = -2[x^2 -3x + 5x - 15]

f(x) = -2[x^2 + 2x - 15]

f(x) = -2x^2 - 4x + 30

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