(3x2 + 5x - 3) + (x2 - 5x + 1)
= 3x2 + 5x - 3 + x2 - 5x + 1 (remove parentheses, identify the like terms)
= 3x2 + x2 + 5x - 5x - 3 + 1 (group the like terms together)
= (3 + 1)x2 + (5 - 5)x - 3 + 1 (use the reverse distributive property - factor)
= 4x2 + 0x - 2 (add, being careful of the signs)
= 4x2 - 2 ANSWER ( it is not necessary to write the middle term "+ 0x" ) |