Question

solve the given quadratic equation by using the formula method x² +4x - 7 =0​

Answer 1

Answer:

x=-2+√44. or x=-2-√44

Step-by-step explanation:

x²+4x-7=0

general form=ax²+bx+c=0

therefore

a=1 , b=4 , c=-7

=b²-4ac

=4²-4×1×(-7)

=16+28

=44

formula x=-b±√b²-4ac/2a

x=-4±√44/2×1

x=-4±√44/2

x=-4+√44/2 or x=-4-√44/2

x=-2+√44. or x=-2-√44