Question

4x4-7x3-12x4+6x3

Answer 1

You can combine, do you know how?

Answer 2

I need help!!

Answer 3

First, rearrange the expression like this: \[4x^4 - 12x^4 - 7x^3 + 6x^3 \] Now make parentheses \[(4x^4 - 12x^4 ) + (-7x^3 + 6x^3) \]

Answer 4

Now, you must operate on the coefficients. Hint: \[2x^3 + 7x^2 = (2 + 7)x^2 = 9x^2 \]

Answer 5

careful... \[\Large 2x^3 + 7x^2 \ne 9x^2\]

Answer 6

Sorry, oops. That preview made it look like a 2.