What is the solution of the equation (4x + 3)2 = 18?
* x= 3 and x = -3
2
x=-
uw
and x = 3
2
x= -3+32 and x = -3-3/2
-343 77 and x =
-3-312
x= 3+372 and x = -3+372
-3+372

Step-by-step explanation:

(4x + 3)2 = 18

8x + 6 = 18

Bringing like terms on one side

8x = 18 - 6

8x = 12

x = 12/8

x = 6/4 = 3/2

the correct answer is the second option

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2