Question

a )9x % 6×2x+7x-9=8
Maths​

Answer 1

Answer:

x=1.8820652568974274,−8.363546738378908

Step-by-step explanation:

Let's solve your equation step-by-step.

(

9x

100

(6))(2)x+7x−9=8

Step 1: Simplify both sides of the equation.

27

25

x2+7x−9=8

Step 2: Subtract 8 from both sides.

27

25

x2+7x−9−8=8−8

27

25

x2+7x−17=0

For this equation: a=1.08, b=7, c=-17

1.08x2+7x+−17=0

Step 3: Use quadratic formula with a=1.08, b=7, c=-17.

x=

−b±√b2−4ac

2a

x=

−(7)±√(7)2−4(1.08)(−17)

2(1.08)

x=

−7±√122.44

2.16

x=1.8820652568974274,−8.363546738378908