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If 4(–3x – 8) = 8(–x + 9), what is the value of x2?

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sandy
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If 4(–3x – 8) = 8(–x + 9), what is the value of x2? [#permalink] New post   23 Jun 2018, 11:38
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If \(4(-3x - 8) = 8(-x + 9)\), what is the value of \(x^2\)?


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Re: If 4(–3x – 8) = 8(–x + 9), what is the value of x2? [#permalink] New post   01 Jul 2018, 21:54
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sandy wrote:
If \(4(-3x - 8) = 8(-x + 9)\), what is the value of \(x^2\)?


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Here;

\(4(-3x - 8) = 8(-x + 9)\)

or \((-3x - 8) = 2(-x + 9)\)

or \(-3x -8 = -2x + 18\)

or \(x = -26\)

or \(x^2 = (-26)^2\) = 676
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Re: If 4(–3x – 8) = 8(–x + 9), what is the value of x2? [#permalink] New post   15 Jul 2018, 03:44
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Explanation

Distribute, group like terms, and solve for x:

4(–3x – 8) = 8(–x + 9)

–12x – 32 = –8x + 72

–32 = 4x + 72

–104 = 4x

–26 = x

Then, multiply 26 by 26 in the calculator (or –26 by –26, although the negatives will cancel each other out) to get \(x^2\), which is 676.
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If 4(3x 8) = 8(x + 9), what is the value of x2? [#permalink] New post   18 Jun 2023, 21:11
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If \(4(-3x - 8) = 8(-x + 9)\), what is the value of \(x^2\)?

We proceed to simplify an distribute

\(4(-3x-8) = 8(-x+9)\)

\((-3x-8) = 2(-x+9)\)

\(-3x-8 = -2x + 18\)

\(-x-26=0\)

\(x= -26\)

x^2 = 676
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Re: If 4(3x 8) = 8(x + 9), what is the value of x2? [#permalink] New post   08 Jul 2024, 01:42
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Re: If 4(3x 8) = 8(x + 9), what is the value of x2? [#permalink]
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