Math, asked by alinadee20, 5 months ago

Kindly explain me the steps plus solution it’s urgent

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Answers

Answered by janvigupta729
1

Step-by-step explanation:

multiplying

a) 2(9a-2)

18a-4

B) (3a-4) (3a+4)

3a(3a+4) -4(3a+4)

9a^2+12a-12a-16

9a^2-16

c) (3a-2)(3a-2)

3a(3a-2)-2(3a-2)

9a^2-6a-6a+4

9a^2-12a+4

d) (3a-2)(3a+2)

3a(3a+2)-2(3a+2)

9a^2+6a-6a-4

9a^2-4

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