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2 years ago

Simplify 13x + 7y - 2x + 6a

Mathematics

2 answers:

VLD [36.1K]2 years ago

8 0

Step-by-step explanation:

13x+7y-2x+6a

combine like terms

=13x-2x+7y+6a

=11x+7y+6a

simplified

andreyandreev [35.5K]2 years ago

5 0

For this case we must simplify the following expression:

$13x + 7y-2x + 6a$

To simplify, we must add similar terms, that is:

$13x-2x + 7y + 6a$

Remember that different signs are subtracted and the sign of the major is placed. So:

$13x-2x + 7y + 6a = 11x + 7y + 6a$

Answer:

$11x + 7y + 6a$

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Answer:

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Step-by-step explanation:

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so, the first 3 terms in the expansion of $(2 + x)^{6}$ , in ascending power of x are,

$64 , 192 \times x^{1} {\textrm{ and }}240 \times x^{2}$

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Now, by inspection,

the term $x^{2}$ comes from k =5 and k = 6

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for k = 6 , the coefficient of $x^{2}$ is, $6_{C_{2}} \times 2^{4}$ = 240

so, coefficient of $x^{2}$ in the final expression = (240 - 192) = 48

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