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CUET
General Test
Quantitative Reasoning
Algebra
If 2a + 3b = 10 and ab = 3, then find the value of 4a2 + 9b2.
60
62
64
66
If 2a + 3b = 10
ab = 3
Then , 4a2 + 9b2
( a + b )2 = a2 + b2 + 2ab
( 10 )2 = 4a2 + 9b2+ 2 × 6 × 3
64 = 4a2 + 9b2
