koiralapuja26 koiralapuja26

27-09-2020
Mathematics

contestada

(c) If 2a + 7b = 11 and ab = 2, find the value of 4a2 + 49b2.

Respuesta :

MIRAGEE MIRAGEE

27-09-2020

I hope this helps you

take both of sides paranthesis square

(2a+7b)^2=(11)^2

4a^2+2.4a.7b+49b^2=121

4a^2+49b^2+56.2=121

4a^2+49b^2=9

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Leora03 Leora03

27-09-2020

Answer:

65

Step-by-step explanation:

Please see the attached picture for full solution.

Ver imagen Leora03

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