Question

Simplify.
−3(9x − 4y)(3x − 7y)

Answer 1

-3(9x - 4y)(3x - 7y)


-3((9x)(3x)+(9x)(-7y)+(-4y)(3x)+(-4y)(-7y))


-3(27x^2-63yx-12yx+28y^2)


-3(27x^2-75yx+28y^2)


-81x^2+225yx-84y^2


So -3(9x - 4y)(3x - 7y) expands and simplifies to -81x^2+225yx-84y^2

Answer 2

thank you I had that answer semi. I subtracted 12 from 63 instead of neg 63

Answer 3

you're welcome, glad you figured out where you went wrong.

Answer 4

thanks