Question

Solve log(x+3) + log(x) = 1.


A -5,2
B 10

c. 2
d. 7

Answer 1

Explanation:

log 10(x^2+ 3x)=1

x^2 + 3x=10

x^2+ 3x_10=0

we use quadratic formula _b+/_ square root b^2 _4.a.c÷2a

a= 1

b=3

c =10

x=2 or - 5