Question

Multiply
0.8xy*-10x²y²*2xy²​

Answer 1

see,

first you have to multiply all kind of numbers whether decimal or integer.

so,

0.8*-10*2*xy*x2y2*xy2

now, we will multiply.

=> -0.08*2*xy*x2y2*xy2

=> 0.16*xy*x2y2*xy2

We are done with the multiplication of numbers and now we have to find the multiplication of the variables.

=> 0.16*xy*x2y2*xy2, This is for continuation.

=> 0.16*x4y5, now we will multiply the integer with the variables.

=>0.16x4y5 (ANS)

And I like to tell you one more thing because it is very important in sums with variables.

Whenever a sum contains variables, then it is necessary to give '=>' sign otherwise half marks will reduce.

=>