Question

Solve the quadratic equation using the formula x2 + 3x – 10 = 0​

Answer 1

Answer:

formula = -b√ b²-4ac/2a

Here b = 3 c = -10 a = 1

-3√ 9+80/2

-3±√ 89/2

Step-by-step explanation:

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Answer 2

Answer:

2,-5

Step-by-step explanation:

formula= -b+_√b^2 -4ac/2a

a=1,b=3,c=-10

substituting the values in the formula

-3+_√3^2-4*1*-10/2*1

=-3+_√9+49/2

=-3+_7/2

-3+7/2=2( -3+7=4,4/2=2)

-3-7/2=-5

so the answer is 2,-5