zainabumar49 zainabumar49

21-08-2021
Mathematics

contestada

if2×4^a-3=16^a÷8^1-a
[tex].[/tex]
2×4^a-3= 16^a÷8^1-a

Respuesta :

XxItzPaglisBandixX XxItzPaglisBandixX

21-08-2021

Answer:

Correct option is

B

10

Given2

2x−y

=32

⇒2

2x−y

=2

5

⇒2x−y=5−−−−(1)

Again2

x+y

=16

⇒2

x+y

=2

4

⇒x+y=4−−−−(2)

Adding(1)and(2)weget

3x=9

⇒x=3

Substitutingx=3in(2)weget

y=1.

∴x

2

+y

2

=3

2

+1

2

=10(Ans)

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