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
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.
Only one choice has that, so ...
Note that standard form list the powers in decreasing order.
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