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3 years ago

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Combine the following expressions.

%20-%20c%20%5Csqrt%7Bx%7D%20" id="TexFormula1" title="a \sqrt{x} + b \sqrt{y} - c \sqrt{x} " alt="a \sqrt{x} + b \sqrt{y} - c \sqrt{x} " align="absmiddle" class="latex-formula">

1 answer:

Sedbober [7]3 years ago

5 0

I hope this helps you

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-2x^2+4x-1 from 6x^2+3x-9

kirza4 [7]

Answer:

$8{x}^{2} - x - 8$

Step-by-step explanation:

We want to subtract

$- 2 {x}^{2} + 4x - 1$

from

$6 {x}^{2} + 3x - 9$

We set up the subtracttion problem to get:

$6 {x}^{2} + 3x - 9 - ( - 2 {x}^{2} + 4x - 1)$

We expand the parenthesis to get:

$6 {x}^{2} + 3x - 9 + 2 {x}^{2} - 4x + 1$

Group similar terms:

$6 {x}^{2} + 2 {x}^{2} + 3x- 4x + 1 - 9$

We simplify to get:

$8{x}^{2} - x - 8$

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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