Question

5x(3x-10) + (2x-6)(3x+8)

Answer 1

Answer: 21
`x^(2)` - 52x - 48

Explanation:

Using the expanding rule we get

5x * 3x - 5x * 10 + (6
`x^(2)` - 18x + 16x -48)

15
`x^(2)` - 50x + 6
`x^(2)` - 2x - 48

21
`x^(2)` - 52x - 48

Answer 2

21x^2-52x-48

Explanation:

5x(3x-10) + (2x-6)(3x+8)

Distribute

5x^2 -50x+6x^2-2x-48

Combine like terms

21x^2-50x-2x-48

21x^2-52x-48