7. Solve for x: 1 point 83° 13x - 7

Mathematics

1 answer:

vovikov84 [41]2 years ago

4 0

Answer:b=7-2-=2

Step-by-step explanation:

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In any quadratic ax² + bx + c, we can split the bx term up into two new terms which we want to equal the product of a and c.
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We want two numbers that add to 0 and multiply to get -9.
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Now we have 3(x² + 3x - 3x - 9).
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There are multiple shortcuts which you could make here, FYI:
Instead of splitting the middle, if your a value is 1, you can go straight to that step (x+number)(x+other number).
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Step-by-step explanation:

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