Question

Factor completely 21x3y4 + 15x2y2 - 12xy3.

3xy(7x2y3 + 5x - 4y)

3xy(7x2y + 5x - 4y2)

3xy2(7x2y + 5x - 4y)

3xy2(7x2y2 + 5x - 4y)

Answer 1

please help

Answer 2

go to everyday mathematics . com see if that works

Answer 3

21x^3y^4 + 15x^2y^2 - 12xy^3

now first, just look at the numbers and find what goes into each number.....that number would be 3.
Now look at the smallest x....that would be x
Now look at the smallest y.... that would be y^2
these are what can be factored out

3xy^2 (7x^2y^2 + 5x - 4y)

Answer 4

Which statement justifies that 3x2 - 2x - 4 multiplied by 2x2 + x - 3 obeys the closure property of multiplication?

The result 6x4 - 2x2 + 12 has a degree of 4.

The result 6x4 - 2x2 + 12 is a trinomial.

The result 6x4 - x3 - 19x2 + 2x + 12 is a polynomial.

The result 6x4 - x3 - 19x2 + 2x + 12 has a degree of 4.
what about this one?

Answer 5

@texaschic101