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Campbell Walsh
Mathematics
29 July, 01:37
How do you factor the trinomial 3x^2+18x-21?
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Kadyn Pace
29 July, 01:38
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(3) (x+7) (x-1)
Step-by-step explanation:
3x^2+18x-21
Let's start by taking 3 out of the equation.
3 (x^2+6x-7)
Now, when we factor, we need to find two numbers that add up to 6 and multiply to - 7.
The numbers would be 7 and - 1.
So the factored form of this would be:
(3) (x+7) (x-1)
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