已知x,y满足 |x+2|+(x+3y+5)²=0.求(-2xy)²(-y)²·6xy²的值
问题描述:
已知x,y满足 |x+2|+(x+3y+5)²=0.求(-2xy)²(-y)²·6xy²的值
答
x,y满足 |x+2|+(x+3y+5)²=0.
则:x=-2,y=-1
(-2xy)²(-y)²·6xy²
=4x²y²y²6xy²
=24x^3y^6
=-192