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3 years ago

Perform the indicated operation.

Mathematics

2 answers:

kirza4 [7]3 years ago

7 0

Step-by-step explanation:

1st.

(7x+2×2-6x-4) - (2x+3×2-3x+11)

(7x+4-6x-4)-(2x+6-3x+11)

collect like terms

(7x-6x-4+4)-(2x-3x+11+6)

(x+0)-(-x+17)

multiply - by the bracket

x+0+x-17

collect like terms

x+x+0-17

2x-17=0

2x=17

divide both sides by the coefficient of x

2x/2=17/2

x=17/2

Ivanshal [37]3 years ago

5 0

Answer Solution:4x2 - 2x) - (-5x2 - 8x)

4x2 - 2x) - (-5x2 - 8x)= 4x2 - 2x + 5x2 + 8x.

4x2 - 2x) - (-5x2 - 8x)= 4x2 - 2x + 5x2 + 8x.= 4x2 + 5x2 - 2x + 8x.

4x2 - 2x) - (-5x2 - 8x)= 4x2 - 2x + 5x2 + 8x.= 4x2 + 5x2 - 2x + 8x.= 9x2 + 6x.

but this is the answer = 3x(3x + 2).

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Lunna [17]

<h2>1st Equation:</h2>

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$a = \frac{5 - 3b}{2}$

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$b = \frac{5 - 2b}{3}$

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olganol [36]

Answer:

$\frac{7\pm\sqrt{73}} {2}$

Explanation:

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$D=b^{2}-4ac$

and after that to find the variable suppose x we have the formula

$x=\frac{-b\pm\sqrt{D}} {2a}$

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After substituting these values in the formula we will get

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KonstantinChe [14]

Answer:

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Step-by-step explanation:

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