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Julli [10]
3 years ago
7

The sum of and 7x2 is 10x2. Answers: 3x^2 or -3x^2

Mathematics
2 answers:
brilliants [131]3 years ago
7 0

Answer:  The required answer is 3x².

Step-by-step explanation:  We are given that the sum of an expression E and 7x² is 10x².

We are to find the value of the expression E.

According to the given information, we have

E+7x^2=10x^2\\\\\Rightarrow E=10x^2-7x^2\\\\\Rightarrow E=(10-7)x^2\\\\\Rightarrow E=3x^2.

Thus, the required answer is 3x².

Wittaler [7]3 years ago
4 0
7x^2+10x^2=17x^2\\\\if\ not\ sume\ only\ difference\\\\7x^2-10x^2=-3x^2
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