How to solve:
Simplify: 2x(3x - 6) + 5x
Distribute 2x through both terms inside parentheses: 2x (3x) + 2x (-6) + 5x
Multiply 2x by 3x: 6x2 + 2x(-6) + 5x.
Multiply 2x by -6: 6x2 - 12x + 5x.
Collect like terms (-12x + 5x): 6x2 - 7x.
Here's one to try:

      





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