Group similar terms together in order to combine like terms.
(4x + 2x + x) + (−1 + 2)
7x + 1
Visualize 8 negative x tiles, 4 positive unit tiles, 3 negative unit tiles, and 10 positive x tiles. If a negative and a positive tile of the same value make a zero, how many tiles are remaining?
Group similar terms together and make zeros.
(−4 + 4) + 1x2 + 3x
Now the fours make a zero.
0 + 1x² + 3x
x2 + 3x
Distribute the 2 on the outside to each of the terms inside the parentheses.
2(3x) − 2(2)
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