9a-5+4a;(2)化简:9a-5+4a;3y*6+4y(3)化简:8x的平方-5x*2
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9a-5+4a;(2)化简:9a-5+4a;3y*6+4y(3)化简:8x的平方-5x*2
9a-5+4a;
(2)化简:9a-5+4a;3y*6+4y
(3)化简:8x的平方-5x*2
9a-5+4a;(2)化简:9a-5+4a;3y*6+4y(3)化简:8x的平方-5x*2
9a-5+4a
=13a-5
3y*6+4y
=18y+4y
=22y
8x的平方-5x*2
=8x^2-10x
=2x(4x-5)
(2)化简:9a-5+4a
=13a-5
3y*6+4y
=10y
(3)化简:8x的平方-5x*2
=8x²-10x
数学化简:
(1)9a-5+4a
=9a+4a-5
=13a-5
(2)3y×6+4y
=18y+4y
=22y
(3)8x²-5x×2
=(8x²)÷x-(10x)÷x
=8x-10
(望采纳,谢谢)
9a-5+4a
=13a-5
3y*6+4y
=18y+4y
=22y
8x的平方-5x*2
=8x^2-10x
=2x(4x-5)
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