Question

Find the value of 16a^2 + 25b^2 if 4a - 5b = 20 and ab = 10

Answer as fast as you can by the full method

Answer 1

Answer:

4a+5b is the correct answer

Answer 2

Answer: 2.25

Step-by-step explanation:

(4x(4))+(5×(4))=16

16+20=16

36=16

=36/16

= 2.25

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