What are the solutions of 3x2 + 14x + 16 = 0?


x = , –2

x = –2,

x = , 2

x = , 2

Verified Answer :

Assume you mean 3x^2 when you typed the question.

3x^2+14x+16=0
(3x+8)(x+2)=0

x=-8/3 or -2

Answer:

option (A) is correct.

x = -2

Step-by-step explanation:

Given : equation \(3x^2+14x+16=0\)

We have to solve for x,

Consider the given equation \(3x^2+14x+16=0\)

we will solve the given quadratic equation using middle term split method, we have,

14x can be writen as 6x + 8x , we have,

\(3x^2+14x+16=0 \Rightarrow 3x^2+6x+8x+16=0\)

Taking 3x common from frst two terms and 8 common from lasttwo term , we have,

\(\Rightarrow 3x(x+2)+8(x+2)=0\)

Taking (x + 2) common, we have,

\(\Rightarrow (x+2)(3x+8)=0\)

Thus, Apply zero product rule, \(a\cdot b=0 \Rightarrow a =0 \ or\ b= 0\)

\(\Rightarrow (x+2)=0\) or \(\Rightarrow (3x+8)=0\)

\(\Rightarrow x=-2\) or \(\Rightarrow x=\frac{-8}{3}\)

Thus, option (A) is correct.