利用乘法公式计算 (3a+2)^2-(2a-1)^2 (x-y)(x+y)-(2x-y)^2 [(x+2)(x-2)]^
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/06/23 01:42:23
利用乘法公式计算 (3a+2)^2-(2a-1)^2 (x-y)(x+y)-(2x-y)^2 [(x+2)(x-2)]^2 (a+3)(a-3)(a^2+9)
(3a+2)^2-(2a-1)^2
(x-y)(x+y)-(2x-y)^2
[(x+2)(x-2)]^2
(a+3)(a-3)(a^2+9)
(3a+2)^2-(2a-1)^2
(x-y)(x+y)-(2x-y)^2
[(x+2)(x-2)]^2
(a+3)(a-3)(a^2+9)
![利用乘法公式计算 (3a+2)^2-(2a-1)^2 (x-y)(x+y)-(2x-y)^2 [(x+2)(x-2)]^](/uploads/image/z/2415261-21-1.jpg?t=%E5%88%A9%E7%94%A8%E4%B9%98%E6%B3%95%E5%85%AC%E5%BC%8F%E8%AE%A1%E7%AE%97+%EF%BC%883a%2B2%29%5E2-%282a-1%29%5E2+%EF%BC%88x-y%EF%BC%89%EF%BC%88x%2By%29-%282x-y%29%5E2+%5B%EF%BC%88x%2B2%29%28x-2%29%5D%5E)
(3a+2)^2-(2a-1)^2={(3a+2)+(2a-1)} * {(3a+2)-(2a-1)}=(5a+1)(a+1)=5a*a+6a+1.
(x-y)(x+y)-(2x-y)^2 =xx-yy-4xx+4xy-4=-3x²+4xy-y²-4.
[(x+2)(x-2)]^2=(x²-4)²=x^4-8x²+16.
(a+3)(a-3)(a^2+9)=(a²-9)(a²+9)=a^4-81.
(x-y)(x+y)-(2x-y)^2 =xx-yy-4xx+4xy-4=-3x²+4xy-y²-4.
[(x+2)(x-2)]^2=(x²-4)²=x^4-8x²+16.
(a+3)(a-3)(a^2+9)=(a²-9)(a²+9)=a^4-81.
利用乘法公式计算 (3a+2)^2-(2a-1)^2 (x-y)(x+y)-(2x-y)^2 [(x+2)(x-2)]^
利用乘法公式计算(x+y)(x²+y²)(x-y)(x的四次方+y四次方)(a-2b+3)(a+2b
计算(x-y)(x^2-y^2)(x+y)(利用乘法公式展开)
数学用乘法公式计算(x+y+1)(x+y-1)(2x-y-3)²
运用乘法公式计算:(1)(x-y)(x+y)-(2x-y)²
(x+2y-3)(x-2y+3)-(x-2y-3)^2乘法公式计算
利用乘法公式计算 (x-2y)的平方(x+2y)的平方
利用乘法公式计算:1.(a-b)(a+b)(a^+b^) 2.(x-2y)^(x+2y)^ 3.(2a-b^)^ 4.(
用乘法公式计算 (2x-y+3)(2x+y+3) (2a-3b+1)^2
用乘法公式计算(2x+3y)^2;-(2x-3y)^2;
运用乘法公式计算:(x+2y-3z)(x-2y+3z)
(-3x-2y)(-3x-2y)用乘法公式计算