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Licemer1 [7]
4 years ago
13

Problem Page Simplify. −7a3a please helppp

Mathematics
1 answer:
nalin [4]4 years ago
5 0
Multiply them!! First multiply the numbers. -7*3 = -21. But then, you have to multiply the variables. What is a times a equal to? Well, a times a is just a squared. Hence, the expression is equal to -21 a^{2}
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How to solve (s + 5)(s - 5)
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Here, we want to solve an expansion

To get this, we simply multiply the terms in the first bracket with the terms in the second, before we proceed to collect like terms

We have this as follows;

\begin{gathered} (s+5)(s-5)\text{ = s(s-5)+5(s-5)} \\ =s^2-5s+5s-25 \\ =s^2-25 \end{gathered}

7 0
1 year ago
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3 years ago
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posledela
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4 years ago
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5.7005 million

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Read 2 more answers
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