Multiply. x^2 + 8x + 15/x-4 x x^2-16/2x+6

2 answers:

8 0

To find the answer for this question:

x^2 + 8x 15/x - 4xx^2 - 16/2x + 6

Apply the exponent rule:
x^2 + 8x + 15/x - 4x^3 - 16/2x + 6

Divide the numbers: 16/2 = 8:
x^2 + 8x + 15/x - 4x^3 - 8/x + 6

Apply the rule: a/c +/- b/c = a +/- b/c
x^2 + 8x + 15-8/x - 4x^3 + 6

After you subtract the numbers: 15 - 8 from the fraction that equals to 7:
x^2 + 8x + 7/x - 4x^3 + 6

So, your answer would be: x^2 + 8x + 7/x - 4x^3 + 6.

Sophie [7]3 years ago

5 0

= 1/2 ( x + 5 ) ( x + 4 )

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Calculate the mean of each data set below. Can you find any shortcuts that allow you to find the mean without having to do much calculation? Homework help 6, 10, 6, 10 11, 12, 12, 13, 12 0, 5, 4, 8, 0, 7

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Sum of of observations $=6+ 10+ 6+10+11+12+12+13+12+0+ 5+ 4+ 8+ 0+7=116$