Please help and thank you

Question

4x⁴y² times -5x³y⁴ times 4y²

Answer 1

in this expression, we simply multiply each element and add the exponents

we can write the expression as follows:

(4x⁴y²)(-5x³y⁴)(4y²)

 

step 1: multiply the coefficients 4, -5, 4 to get -80

step 2: multiply the x elements, adding the exponents: x³  · x⁴ = x⁷

step 3: multiply the y elements, adding the exponents: y² · y⁴ · y² = y⁸

combine all the elements to get the answer -80x⁷y⁸