[(x+2)(x-2)]²用乘法公式计算等于多少
问题描述:
[(x+2)(x-2)]²用乘法公式计算等于多少
答
[(x+2)(x-2)]²=(x²-4)²=x^4-8x²+16 [(x+2)(x-2)]²=(x+2)(x-2)(x+2)(x-2) =(x²-4)(x²-4) =x^4-8x²+16
[(x+2)(x-2)]²用乘法公式计算等于多少
[(x+2)(x-2)]²=(x²-4)²=x^4-8x²+16 [(x+2)(x-2)]²=(x+2)(x-2)(x+2)(x-2) =(x²-4)(x²-4) =x^4-8x²+16