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Anna007 [38]
3 years ago
13

Expand [a/3-b/6-1]^2

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
6 0

Answer:

Step-by-step explanation:

(x + y +z)^2 = x² + y² + z² + 2xy + 2yz + 2zx

x = a/3

y = -b/6

c = -1

[\frac{a}{3}-\frac{b}{6}-1]^{2}=(\frac{a}{3})^{2}+(\frac{-b}{6})^{2}+(-1)^{2}+2*\frac{a}{3}*\frac{-b}{6}+2*\frac{-b}{6}*(-1)+2*\frac{a}{3}*(-1)\\\\\\=\frac{a^{2}}{9}+\frac{b^{2}}{36}+1-\frac{ab}{9}+\frac{b}{3}-\frac{2a}{3}

KATRIN_1 [288]3 years ago
4 0

Answer:

(a/3

(  \frac{a}{3}  -  \frac{b}{5}  ) {}^{2}

\frac{ {a}^{2} }{9}  -  \frac{2ab}{15}  +  \frac{b {}^{2} }{25}

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