Question

simplify fast............​

Answer 1

Answer:

we can solve this by this identity

(a-b-c)^2=(a)^2+(-b)^2+(-c)^2+2ab+2bc+2ca

Step-by-step explanation:

$({ a})^{2} + ( { \frac{ -b}{2} })^{2} + ({ \frac{ - c}{3} })^{2} + 2 \times a \times \frac{ - b}{2} + 2 \times - \frac{b}{2} \times - \frac{c}{3} + 2 \times - \frac{c}{3} \times a \\ {(a - \frac{b}{2} - \frac{c}{3})}^{2}$

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