9x^2-16x+52=8x^2
Find the discriminant

x=8+2√3 or x=8−2√3

Step-by-step explanation:

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

9x2−16x+52=8x2

Step 1: Subtract 8x^2 from both sides.

9x2−16x+52−8x2=8x2−8x2

x2−16x+52=0

For this equation: a=1, b=-16, c=52

1x2+−16x+52=0

Step 2: Use quadratic formula with a=1, b=-16, c=52.

x=

−b±√b2−4ac

2a

x=

−(−16)±√(−16)2−4(1)(52)

2(1)

x=

16±√48

2

x=8+2√3 or x=8−2√3

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation: