Question

$x - 7 \div 2 \times 2x - 1 \div 2$
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Answer 1

Answer:

$x - 7 \div 2 \times 2x - 1 \div 2 \\ \\ = 2x - 7 \div 2 \times 4x - 1 \div 2 \\ \\ = 8x {}^{2} - 2x - 28x + 7 \div 4 \\ \\ = 8x {}^{2} \div 4 - 30x \div 4 + 7 \div 4 \\ \\ = 2x { }^{2} - 30x \div 4 + 7 \div 4$