Question

Write the polynomial as a product: 15x^3z+30x^2–18yz–9xyz^2

Answer 1

15x^2(xz + 2) - 9yz(2 + xz)

(15x^2 - 9yz)(xz + 2)

3(5x^2-3yz)(xz + 2)

Answer 2

15x³z + 30x² - 18yz - 9xyz² =

= 15x³z + 30x² - 9xyz² - 18yz =

= 15x²(xz + 2) - 9yz(xz + 2) =

= (15x² - 9yz)(xz + 2)