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konstantin123 [22]
4 years ago
10

What is the sum of

2012x%20%2B%2012%20%5C%5C%20" id="TexFormula1" title=" 5 {x}^{2} + 3x - 7 \: and \: 12x + 12 \\ " alt=" 5 {x}^{2} + 3x - 7 \: and \: 12x + 12 \\ " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Alex4 years ago
7 0

Answer:

5x² + 15x + 5  

Step-by-step explanation:

Here's one way to do it.

Put corresponding powers of x beneath each other and add the similar terms.

5x² +   3x  -  7

<u>          12x + 12 </u>

5x² + 15x +  5

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