(7x + y)2 – 36(3x + 2y)2

Mathematics

2 answers:

forsale [732]3 years ago

6 0

Answer:

i think the answer is 146y-202x

tester [92]3 years ago

4 0

Answer:

−202x+−142y

Step-by-step explanation:

step one:distribute

(7x)(2)+(y)(2)+−216x+−144y

14x+2y+−216x+−144y

step two:combine like terms

14x+2y+−216x+−144y

(14x+−216x)+(2y+−144y)

=−202x+−142y

plz mark me brainliest

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$\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &250\\ r=rate\to 16\%\to \frac{16}{100}\dotfill &0.16\\ t=\textit{elapsed time} \end{cases} \\\\\\ A=250(1 + 0.16)^{t}\implies A=250(1.16)^t \\\\[-0.35em] ~\dotfill$

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