randyu58 randyu58

14-09-2016
Mathematics

contestada

Add: 2a3 + 5a - 7 and 5a2 - 6a + 12

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zoobles98 zoobles98

14-09-2016

so for this you are adding like terms

that means 5a and -6a are added together and would come to -1a or -a.

-7 and 12 added together would be 5.

2a^3 and 5a^2 dont have like terms so they stay like so.

final answer would be 2a^3+5a^2-1a+5

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