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-(-2x^(2)-4x+7) Which of the following expressions is equivalent to the given expression? Choose 1 answer: (A) -2x^(2)+4x-7 (B) -2x^(2)+4x+7 (C) 2x^(2)+4x-7 (D) 2x^(2)+4x+7

−(−2x2−4x+7) -\left(-2 x^{2}-4 x+7\right) \newlineWhich of the following expressions is equivalent to the given expression?\newlineChoose 11 answer:\newline(A) −2x2+4x−7 -2 x^{2}+4 x-7 \newline(B) −2x2+4x+7 -2 x^{2}+4 x+7 \newline(C) 2x2+4x−7 2 x^{2}+4 x-7 \newline(D) 2x2+4x+7 2 x^{2}+4 x+7

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Full solution

Q. −(−2x2−4x+7) -\left(-2 x^{2}-4 x+7\right) \newlineWhich of the following expressions is equivalent to the given expression?\newlineChoose 11 answer:\newline(A) −2x2+4x−7 -2 x^{2}+4 x-7 \newline(B) −2x2+4x+7 -2 x^{2}+4 x+7 \newline(C) 2x2+4x−7 2 x^{2}+4 x-7 \newline(D) 2x2+4x+7 2 x^{2}+4 x+7
  1. Given Expression: We are given the expression −(−2x2−4x+7)-(-2x^{2}-4x+7) and we need to simplify it.\newlineTo simplify, we distribute the negative sign across the terms inside the parentheses.\newlineSo, −(−2x2)-(-2x^{2}) becomes +2x2+2x^{2}, −(−4x)-(-4x) becomes +4x+4x, and −(7)-(7) becomes −7-7.\newlineThe simplified expression is 2x2+4x−72x^{2} + 4x - 7.

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