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Mathematics 10 Online
OpenStudy (anonymous):

Simplify (4x3+ 13x - 7) - (6x2+ 9x + 2) A) -2x2+ 4x - 9 B) -2x2+ 22x - 5 C) 4x3- 6x2+ 4x - 9 D) 4x3- 6x2+ 22x - 5

OpenStudy (anonymous):

D would be the correct answer. Would you like me to explain?

OpenStudy (anonymous):

yes please

OpenStudy (anonymous):

A would be incorrect because you can't subtract 4x^3 and 6x^2 because they have different exponents

OpenStudy (uri):

Yeah D. You need to remove the parenthesis and bring all the integers together which have same powers and add or subtract.

OpenStudy (anonymous):

Simplify 4x2(2x2- 8x + 6) A) 8x2- 32x + 24 B) 6x2- 32x + 24 C) 6 - 32x + 24x2 D) 8x4- 32x3+ 24x2

OpenStudy (anonymous):

The correct answer would be D again, you are adding the exponents here

OpenStudy (anonymous):

Thank you so muchh!

OpenStudy (anonymous):

Defiantly D, C is not even in descending order

OpenStudy (anonymous):

Youre welcome..thanks for the medal

OpenStudy (anonymous):

Refer to the screen capture attachment from WolfFram Alpha.

OpenStudy (anonymous):

@robtobey that isn't any of the answers

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