4 years ago

If anyone is good at algebra please help lol

Mathematics

2 answers:

Whitepunk [10]4 years ago

6 0

Answer: 6x^2 - 12x - 21

Explanation:

h(x) = 2x^2 - 4x - 7
h(3x) = 3(2x^2 - 4x - 7)
h(3x) = 6x^2 - 12x - 21

qwelly [4]4 years ago

4 0

Answer:

h(3x)=18x^2-12x-7

Step-by-step explanation:

$h(x)=2x^2-4x-7\\h(3x) = ?\\\\h(3x) = 2(3x)^2 -4(3x)-7\\\\h(3x)=2\left(3x\right)^2-4\times\:3x-7\\\\h(3x)=3^2\times\:2x^2-4\times\:3x-7\\\\h(3x)=3^2\times\:2x^2-12x-7\\\\h(3x)=18x^2-12x-7$

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