Question

Which of the following polynomials has the equal zeroes?


x²+6x+5

x²-8x+16

6x²-x-2

10x²-3x-1​

Answer 1

Answer:

Simplify (4x2 – 4x – 7)(x + 3)

Here's what the multiplication looks like when it's done horizontally:

(4x2 – 4x – 7)(x + 3)

(4x2 – 4x – 7)(x) + (4x2 – 4x – 7)(3)

4x2(x) – 4x(x) – 7(x) + 4x2(3) – 4x(3) – 7(3)

4x3 – 4x2 – 7x + 12x2 – 12x – 21

4x3 – 4x2 + 12x2 – 7x – 12x – 21

4x3 + 8x2 – 19x – 21