Is the inequality always, sometimes, or never true? 9x + 2(2 + x) < 5 + 9x
1 answer:
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Answer: 81
Concept:
When a number is being squared, to being put to any power, it means the number multiplies itself by the amount of times indicated by the exponent.
For example, if 3 is to the 3rd power, then it would appear to be 3 × 3 × 3.
Solve:
<u>Given</u>
9²
<u>Simplify exponents</u>
=9 × 9
<u>Simplify by multiplication</u>
=
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