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Solve it...........!!!!​

Solve it...........!!!!​-example-1

2 Answers

9 votes

Answer:

I think it is correct and is 1 and 2

Solve it...........!!!!​-example-1
User Doffm
by
6.1k points
11 votes

Explanation:

5×4^(x+1)-16^x=64

0=64+16^x-5×4¹×4^x

0=(4^x)²-2×4^x×10+10²-10²+64

0=(4^x-10)²-36

(4^x-10)²=36

4^x-10=√36

4^x=+-6+10

when positive

4^x=4²

:.x=2

when negative

4^x=4

:.x=1

:.x=1,2 answer.

User Wootiae
by
6.4k points