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3 years ago

3x^2-17x=56. What is x?

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

4 0

Answer:

$x=-\frac{7}{3} \\x=8$

Step-by-step explanation:

$3x^2-17x=56$

$3x^2-17x-56=0\\$

$3x^2+7x-24x-56=0$

$x(3x+7)-8(3x+7)=0$

$(3x+7)(x-8)=0$

$x=-\frac{7}{3} \\x=8$

Hope this is helpful.

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