Simplyfy please (-5x^2y^5)(-7x^7 y^4) ?

Question

Thanks for all the help!!

Answer 1

its been a few years since high school but it looks good

-y^4x^2(5y)(7x^5)

Answer 2

(-5x^2y^5)(-7x^7y^4)

= (-5)(-7)(x^2)(x^7)(y^5)(y^4)

= [35][x^(2 + 7)][y^(5 + 4)]

= [35][x^9][y^9]

= 35x^9y^9

Answer 3

ohmy god

good luck. =]

Answer 4

I am assuming that the space in the second brackets is accidental and these are all pure multiplications and exponentiations.

These group thus:

(-5)(-7)x^2*x^7*y^5*y^4

= 35x^9y^9

Answer 5

looks hard

Answer 6

(-5x²y⁵)(-7x⁷y⁴) = (-5)(-7)(x²x⁷)(y⁵y⁴)

= 35x⁹y⁹