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Alika [10]
3 years ago
11

PLEASE ANSWER! I’m a tad desperate..

Mathematics
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

1 7 21 35 35 21 7 1

Step-by-step explanation:

Pascal triangle is a mathematical expression that can be used to expand questions involving bracket, especially of high degree/ power. Example: (a + b)^{9} etc

For the given question, the Pascal triangle for the expansion is: 1 7 21 35 35 21 7 1

So that,

(2x^{3}+3y^{2})  ^{7} = 1.(2x^{3}) ^{7} + 7.(2x^{3}) ^{6}.3y^{2}  + 21. (2x^{3}) ^{5}.(3y^{2}) ^{2} + 35.(2x^{3}) ^{4}.(3y^{2}) ^{3} + 35. (2x^{3}) ^{3}.(3y^{2}) ^{4} + 21. (2x^{3}) ^{2}.(3y^{2})^{5} + 7.(2x^{3} )^{1}.(3y^{2} )^{6} + 1.(3y^{2}) ^{7}

   = 128x^{21} + 1344x^{18}y^{2} +  6048x^{15}y^{4} + 15120x^{12}y^{6} + 22680x^{9}y^{8} + 20412x^{6}y^{10} + 10206x^{3}y^{12} + 2187y^{14}

Therefore;

(2x^{3}+3y^{2})  ^{7} = 128x^{21} + 1344x^{18}y^{2} +  6048x^{15}y^{4} + 15120x^{12}y^{6} + 22680x^{9}y^{8} + 20412x^{6}y^{10} + 10206x^{3}y^{12} + 2187y^{14}

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