Question

Which is a quadratic equation in FACTORED FORM?

A
f(x)=2x2+5x−12f(x)=2x^2+5x-12f(x)=2x
2
+5x−12

B
f(x)=2x+5f(x)=2x+5f(x)=2x+5

C
f(x)=2(x+5)2−12f(x)=2(x+5)^2-12f(x)=2(x+5)
2
−12

D
f(x)=2(x+5)(x−12)f(x)=2(x+5)(x-12)f(x)=2(x+5)(x−12)

Answer 1

• D) f(x) = 2(x + 5)(x − 12)

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Given options:

A) f(x) = 2x² + 5x − 12,

• this is a standard form of quadratic function.

B) f(x) = 2x + 5,

• this is a linear function, not quadratic.

C) f(x) = 2(x + 5)² − 12,

• this is vertex form of a quadratic function.

D) f(x) = 2(x + 5)(x − 12),

• this is a factored form of a quadratic function.