2 &
9
Which expression is equivalent to (3a + 7)(2a - 5)?
O A. 5a2 - a - 35
B. 5a2 - 29a - 35
OC. 642 - a - 35
O
D. 6a2 - 29a - 35

C

Step-by-step explanation:

6a²-15a+14a-35=6a²-a-35

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

b, i believe, but not sure.