Question

Solve: x2 + 6x = 14 Using the Quadratic Formula
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Answer 1

Answer:

x = 13.49 (approx)

Step-by-step explanation:

$x = \frac{-b\sqrt{b^{2}-4ac } }{2a}$

According to question,

b = 6 , a = 1 , c = -14

$x =\frac{6+\sqrt{6^{2}+56 } }{2}$

$x = \frac{6+\sqrt{36+56} }{2}$

$x = \frac{6+6+\sqrt{56} }{2}$

$x=\frac{12+\sqrt{56}}{2}$

$x = 6 +\sqrt{56}$

√56 = 7.4833147735478827711674974646331

x = 6 + 7.4833147735478827711674974646331

x = 13.483314773547882771167497464633

x = 13.49 (approx)