用因式分解法解方程:(1)(x-3)²-36=0 (2)5x²+2x=0 (3)3x²-9=0用因式分解法解方程:(1)(x-3)²-36=0(2)5x²+2x=0(3)3x²-9=0(4)(x-3)(x+1)=(x-3)(5)3x(x-7)=5(x-7)(6)(x+1)²=x+1(7)7x(3-x)=3(x-3)

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用因式分解法解方程:(1)(x-3)²-36=0 (2)5x²+2x=0 (3)3x²-9=0用因式分解法解方程:(1)(x-3)²-36=0(2)5x²+2x=0(3)3x²-9=0(4)(x-3)(x+1)=(x-3)(5)3x(x-7)=5(x-7)(6)(x+1)²=x+1(7)7x(3-x)=3(x-3)

用因式分解法解方程:(1)(x-3)²-36=0 (2)5x²+2x=0 (3)3x²-9=0用因式分解法解方程:(1)(x-3)²-36=0(2)5x²+2x=0(3)3x²-9=0(4)(x-3)(x+1)=(x-3)(5)3x(x-7)=5(x-7)(6)(x+1)²=x+1(7)7x(3-x)=3(x-3)
用因式分解法解方程:(1)(x-3)²-36=0 (2)5x²+2x=0 (3)3x²-9=0
用因式分解法解方程:
(1)(x-3)²-36=0
(2)5x²+2x=0
(3)3x²-9=0
(4)(x-3)(x+1)=(x-3)
(5)3x(x-7)=5(x-7)
(6)(x+1)²=x+1
(7)7x(3-x)=3(x-3)

用因式分解法解方程:(1)(x-3)²-36=0 (2)5x²+2x=0 (3)3x²-9=0用因式分解法解方程:(1)(x-3)²-36=0(2)5x²+2x=0(3)3x²-9=0(4)(x-3)(x+1)=(x-3)(5)3x(x-7)=5(x-7)(6)(x+1)²=x+1(7)7x(3-x)=3(x-3)
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