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scoundrel [369]
3 years ago
5

What is 3x + 10(1-7X)

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
6 0

Answer:

-67x+10

Step-by-step explanation:

3x+10(-7x+10)

3x+10(-7x+10)

3x-70+10

______________

3x-70+10

-67x+10

Alinara [238K]3 years ago
5 0

Answer:

-67x + 10

Step-by-step explanation:

3x + 10(1 - 7x)

(use distributive property)

3x + 10 - 70x

(simplify)

3x - 70x + 10

-67x + 10

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Select the two values of x that are roots of this equation.<br> 2x2 + 11x+15= 0
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Answer:

The two values of x are -2.5 and -3

Step-by-step explanation:

we have

2x^{2}+11x+15=0

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

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in this problem we have

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substitute in the formula

x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}

x=\frac{-11(+/-)\sqrt{1}} {4}

x=\frac{-11(+/-)1} {4}

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x_2=\frac{-11(-)1} {4}=-3

therefore

The two values of x are -2.5 and -3

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