Math, asked by BilalSabugar, 1 month ago

Expand : ( 2a-3b+4c)²

Answers

Answered by warisha153
0

Answer:

42−12+16+92−24+162

Step-by-step explanation:

Simplify

1.Expand the square

(2−3+4)²

=(2a-3b+4c)²(2a−3b+4c)2

=(2−3+4)(2−3+4)

=(2a-3b+4c)(2a-3b+4c)(2a−3b+4c)(2a−3b+4c)

2.Distribute

(2−3+4)(2−3+4)

{(2a-3b+4c)(2a-3b+4c)}}(2a−3b+4c)(2a−3b+4c)

2(2−3+4)−3(2−3+4)+4(2−3+4)

{2a(2a-3b+4c)-3b(2a-3b+4c)+4c(2a-3b+4c)}}

2a(2a−3b+4c)−3b(2a−3b+4c)+4c(2a−3b+4c)

{2a(2a-3b+4c)}}-3b(2a-3b+4c)+4c(2a-3b+4c)2a(2a−3b+4c)−3b(2a−3b+4c)+4c(2a−3b+4c)

42−6+8−3(2−3+4)+4(2−3+4)

{4a^{2}-6ab+8ac}}-3b(2a-3b+4c)+4c(2a-3b+4c)4a2−6ab+8ac−3b(2a−3b+4c)+4c(2a−3b+4c)

4

Distribute

42−6+8−3(2−3+4)+4(2−3+4)

4a^{2}-6ab+8ac{\color{#c92786}{-3b(2a-3b+4c)}}+4c(2a-3b+4c)4a2−6ab+8ac−3b(2a−3b+4c)+4c(2a−3b+4c)

42−6+8−6+92−12+4(2−3+4)

4a^{2}-6ab+8ac{\color{#c92786}{-6ab+9b^{2}-12bc}}+4c(2a-3b+4c)4a2−6ab+8ac−6ab+9b2−12bc+4c(2a−3b+4c)

5

Distribute

42−6+8−6+92−12+4(2−3+4)

4a^{2}-6ab+8ac-6ab+9b^{2}-12bc+{\color{#c92786}{4c(2a-3b+4c)}}4a2−6ab+8ac−6ab+9b2−12bc+4c(2a−3b+4c)

42−6+8−6+92−12+8−12+162

4a^{2}-6ab+8ac-6ab+9b^{2}-12bc+{8ac-12bc+16c^{2}}}4a2−6ab+8ac−6ab+9b2−12bc+8ac−12bc+16c2

6

Combine like terms

42−6+8−6+92−12+8−12+162

4a^{2}{\color{#c92786}{-6ab}}+8ac{\color{#c92786}{-6ab}}+9b^{2}-12bc+8ac-12bc+16c^{2}4a2−6ab+8ac−6ab+9b2−12bc+8ac−12bc+16c2

42−12+8+92−12+8−12+162

4a^{2}{\color{#c92786}{-12ab}}+8ac+9b^{2}-12bc+8ac-12bc+16c^{2}4a2−12ab+8ac+9b2−12bc+<

phew-

Answered by faleehamanal
4
This is your answer hope it helps you
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