Question

7x²+4/2x = 4х
Допоможіть будь ласка!!!
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Answer 1

Объяснение:

7х²+4=8х²

4=8х²-7х²

х²=4

х=2

х=-2

Answer 2

$\displaystyle\bf\\\frac{7x^{2} +4}{2x}=4x\\\\\\7x^{2} +4=4x\cdot 2x \ \ \ , \ \ \ x\neq 0\\\\7x^{2} +4=8x^{2} \\\\8x^{2} -7x^{2} =4\\\\x^{2} =4\\\\x_{1,2} =\pm \ \sqrt{4} =\pm \ 2\\\\x_{1} =-2 \ \ \ ; \ \ \ x_{2} =2$