Simplify the algebraic expression: x (x + 3) + x (2x - 4) + 6

3x2+-x+6

Step-by-step explanation:

First step - you have to remember the distributive rule.

so, x times x is x^2.

x times 3 is 3x

x times 2x is 2x^2 and so on

= x^2+3x+2x^2 + - 4x+6

Second step - we have to combine like terms

x^2+3x+2x^2 + - 4x+6

(x^2+2x^2) + (3x+-4x) + (6)

= 3x2+-x+6

Answer: 3x^2 - x + 6