solve the following quadratic equation in formula method

solve fast
Answers
Answer:
jajsjyhs728263667228?())9282(8#()#))#))#(28$++3+3
Use the quadratic formula
=−±2−4√2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}x=2a−b±b2−4ac
Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.
22+7−9=0
2x^{2}+7x-9=02x2+7x−9=0
=2
a={\color{#c92786}{2}}a=2
=7
b={\color{#e8710a}{7}}b=7
=−9
c={\color{#129eaf}{-9}}c=−9
=−7±72−4⋅2(−9)√2⋅2
x=\frac{-{\color{#e8710a}{7}} \pm \sqrt{{\color{#e8710a}{7}}^{2}-4 \cdot {\color{#c92786}{2}}({\color{#129eaf}{-9}})}}{2 \cdot {\color{#c92786}{2}}}x=2⋅2−7±72−4⋅2(−9)
2
Simplify
Evaluate the exponent
Multiply the numbers
Add the numbers
Evaluate the square root
Multiply the numbers
=−7±114
x=\frac{-7 \pm 11}{4}x=4−7±11
3
Separate the equations
To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.
=−7+114
x=\frac{-7+11}{4}x=4−7