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pshichka [43]
2 years ago
15

Simplify 7x²+3x-5x²-10x

Mathematics
1 answer:
solmaris [256]2 years ago
3 0

Answer:

2x²-7x

Step-by-step explanation:

7x²-5x²=2x²

10x-3x=7x

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Find all x-intercepts and y-intercepts of the graph of the function.<br> F(x)=x³-4x² - 4x + 16
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Answer: (0;16)  (4;0)  (2;0)  (-2;0).

Step-by-step explanation:

Y-intercepts of the graph of the function F(x)=x³-4x² - 4x + 16:

x=0\\F(x)=0^3-4*0^2-4*0+16\\F(x)=16.\\Hence,\  (0;16).

X-intercepts of the graph of the function F(x)=x³-4x² - 4x + 16:

F(x)=0\\0=x^3-4x^2-4x+16\\0=(x^3-4x^2)-(4x+16)\\0=x^2*(x-4)-4*(x-4)\\0=(x-4)*(x^2-4)\\0=(x-4)*(x^2-2^2)\\0=(x-4)*(x-2)*(x+2)\\x-4=0\\x_1=4.\\Hence,\ (4;0)\\x-2=0\\x_2=2.\\Hence,\ (2;0)\\x+2=0\\x_3=-2.\\Hence,\ (-2;0).

8 0
1 year ago
Julie has three boxes of pens. The diagram shows expressions for the number of pens in each box. Look at these equations.
vovangra [49]

Answer:

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Step-by-step explanation:

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a - 12 = c + 4

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Write 4 5/8 as an improper fraction:  45/8.

Then invert this result, obtaining:

 .  This is the "reciprocal" of 4 5/8.

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Answer:

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Step-by-step explanation:

attached

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