Asked by bebe

Write -2x^2(-5x2+4x^3) in standard form.
A) -8x^5-20x^4
B) -8x^5+10x^4
C) -7x+2x^4
D) -7x^5-10x^4

Answers

Answered by oobleck
well, (-2x^2)(-5x^2) = 10x^4
Only one choice has that, so ...

Note that standard form list the powers in decreasing order.
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