What is: 2x(x + 5) + x (3x - 4)?
回答 (4)
2007-11-27 12:08 am
= 2x(x + 5) + x(3x - 4)
= 2x^2 + 10x + 3x^2 - 4x
= 5x^2 + 6x
= x(5x + 6)
Answer: x(5x + 6)
= 2x^2 + 10x + 3x^2 - 4x
= 5x^2 + 6x
= x(5x + 6)
Answer: x(5x + 6)
2007-11-27 12:19 am
2x^2 + 10x + 3x^2 - 4x
5x^2 + 6x
5x^2 + 6x
2007-11-27 12:09 am
2x^2+10x+3x^2-4x
= 5x^2+6x
dividing by x
5x+6=0
5x=-6
x=-6/7
= 5x^2+6x
dividing by x
5x+6=0
5x=-6
x=-6/7
收錄日期: 2021-05-03 14:21:41
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