Find the x intercepts of $f ( x ) = 2 x ^ { 2 } - 11 x - 21$ .
A) $- \frac { 3 } { 2 }$ and 7
B) $- 21$
C) $- \frac { 3 } { 2 }$ and $- 7$
D) $- \frac { 2 } { 3 }$ and 7

Question

Quizplus · Accepted Answer

To find the x-intercepts of the quadratic equation $f(x) = 2x^2 - 11x - 21$, we set $f(x) = 0$ and solve for $x$. This gives us $2x^2 - 11x - 21 = 0$. Factoring or using the quadratic formula, we find the solutions $x = -\frac{3}{2}$ and $x = 7$, which are the x-intercepts.

Find the X Intercepts Of f(x)=2x2−11x−21f ( x ) = 2 x ^ { 2 } - 11 x - 21f(x)=2x2−11x−21

Find the X Intercepts Of $f ( x ) = 2 x ^ { 2 } - 11 x - 21$