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Brief Exaplanation:
Step 1: Combine like terms
First, identify and group the like terms in the expression
- -2×2+8x−9+4x+7×2+2:
- 2 terms: – 22 and +72
- terms: +8x and +4x
- Constant terms: -9 and +2
Next, combine the coefficients for each group:
- For 2: -2+7 = 5, resulting in 5×2.
- For : 8+4 = 12, resulting in 12.
- For constants: -9+2 = 7.
Step 2: Form the final expression
Combine the simplified terms to form the final equivalent expression, typically written in standard form (descending powers of x): 5×2+12x-7.
Answer: The expression equivalent to the given expression is 52+12−7
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