Question

(3x+1/2x)²
$(3x + \frac{1}{2x} ){?}^{2}$
​

Answer 1

${(3x + \frac{1}{2} )}^{2} = {(3x)}^{2} + { (\frac{1}{2}) }^{2} + 2(3x)( \frac{1}{2} ) \\ \\ = {9x}^{2} + \frac{1}{4} + 3x$

• Identity used = ${(a+b)}^{2} = {a}^{2} + {b}^{2} + 2(a)(b)$

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