Math, asked by rakhisingh2778, 6 months ago

if 20+b=9 and ab=‐4, then 4a²+b² equal to

Answers

Answered by faiyaz9941

0

Step-by-step explanation:

20+b=9

b=9-20=-11.

ab=-4

a=-4/b=-4/-11

4a2+b2=14705/121=121.53

therefore 121.53 is the answer

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