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Complete the table below to solve the equation $2x + 12 = 4^x$ $x$ /$f(x)=2x+12$ /$g(x)=4^x$ −2 / / −1 / / 0 / / 1 / / 2 / / A x=0 B x=1 C x=2 D x=16
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5 votes
Complete the table below to solve the equation $2x + 12 = 4^x$

$x$ /$f(x)=2x+12$ /$g(x)=4^x$
−2 / /
−1 / /
0 / /
1 / /
2 / /

A x=0
B x=1
C x=2
D x=16

User Stepan Parunashvili
by
8.2k points

1 Answer

6 votes
2(2) + 12 = 4^(2)
4 + 12 = 16
16 = 16

only x = 2 will have f(x)=g(x) so x = 2 is answer
User Quaneesha
by
8.0k points
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