Math, asked by rsaumyata, 5 months ago

if 2a+3b=7andab=2, find4a^2+9b^2

Answers

Answered by bhumiorange

1

Answer:

4a^2+9b^2 = 25

Refer to the attachment for explanation

Attachments:

Answered by padmavathysivapragas

2

Step-by-step explanation:

(2a+3b) = 7

Squaring both side

(2a +3b) ^2 =7^2

4a^2+9b^2 +12ab =49

4a^2+9b^2 +12 (2) =49

4a^2+9b^2=49-24

4a^2+9b^2 =25

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