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2 years ago

What are the zeros of 2x^2+17x=-21

Mathematics

1 answer:

enyata [817]2 years ago

3 0

$2x^2+17x+21=0\\D=17^2-4*2*21=121=11^2\\x_1=\frac{-17+11}{4} =-1,5\\x_2=\frac{-17-11}{4} =-7$

zeros of 2x^2+17x=-21 are (-7;0) and (-1,5)

P.S. Hello from Russia

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Answer:

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Read 2 more answers

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We know that
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[volume of the similar prism]=[scale factor]³*[volume original prism]
[scale factor]³=[volume of the similar prism]/[volume original prism]
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scale factor=∛256.05-------> 6.35

the dimensions of the original prism are
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