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3 years ago

1/3(9x-24) x simplify the expression

Mathematics

1 answer:

pav-90 [236]3 years ago

7 0

I hope this helps you

1/3 (9x-24)

1/3.9x-1/3.24

3x-8

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4 years ago

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3 years ago

Y=6x4 + 7x2 and x = vw +1

belka [17]

Answer:

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Step-by-step explanation:

Substitute the value of x and y into the first equation and solve for w:

$y=6x^4+7x^2\\10=6(\sqrt{w+1})^4+7(\sqrt{w+1})^2\\10=6(w+1)^2+7(w+1)\\10=6(w^2+2w+1)+7w+7\\10=6w^2+12w+6+7w+7\\0=6w^2+19w+3$

Solve for w with the quadratic formula:

$w=\frac{-b\±\sqrt{b^2-4ac}}{2a} \\w=\frac{-19\±\sqrt{19^2-4(6)(3)} }{2(6)}\\w=\frac{-19\±\sqrt{361-72}}{12} \\w=\frac{-19\±\sqrt{289} }{12} \\w=\frac{-19\±17}{12}$

After simplifying, we get either w=-1/6 or w=-3.

Not sure if w needs to satisfy all conditions while maintaining everything as real numbers, because if w=-3, then x is an imaginary number. But both values work just as fine.

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2 years ago