Answer:
Option B
Step-by-step explanation:
Given quadratic equation is,
y = 2x² + 5x - 7
By comparing this equation with y = ax² + bx + c
a = 2, b = 5 and c = -7
Solution of the polynomial (2x² + 5x - 7) can be determined by the quadratic formula,
[tex]x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
Substitute the values of a, b and c.
[tex]x=\frac{-5\pm \sqrt{5^2-4(2)(-7)}}{2(2)}[/tex]
[tex]=\frac{-5\pm \sqrt{25+56} }{4}[/tex]
Therefore, Option B will be answer.
