Question

(负的二分之一乘以x的二次方乘以y的三次方)乘以2的4次方乘以x的5次方乘以y的5次方,等于多少?

Answer 1

(-1/2*X^2*Y^3)*2^4*X^5*Y^5=(-1/2*2^4)*X^(2+5)*Y^(3+5)=-8X^7Y^8