2 Consider the following expression and the simplified expression. Expression 3x? + 5y2 +3 +4y2 + 6 Simplified Expression 9x2 - y2 +9 Which terms could be in the boxes to make the expressions equivalent? +6x2 and -6y? +6x2 and -10y2 +9x2 and -10y? +9x2 and -6y2 Save and Exit Next Mark this and return C

the answer is b.)

< 1=< 2

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752