Question

8. Solve the following quadratic equations for and give your answer correct to
2 decimal places
(1) x2 - 5x - 10 = 0
(2) x2+7x=7
plz give me your answer correct​

Answer 1

Step-by-step explanation:

Given: x

2

−5x−10=0

Here, a=1,b=−5 and c=−10

∴ D=b

2

−4ac

=(−5)

2

−4×1×−10=65

x=

2a

−b±

D

=

2×1

5±

65

=

2

5±8.06

=

2

5+8.06

,

2

5−8.06

=

2

13.06

,−

2

3.06

x=6.53,−1.53

I hope this helps u