Question

Select the correct answer. What are the solutions of the quadratic equation below? 4x2 − 30x + 45 = 0.

Answer 1

5.42 and 2.07

Explanation:

When ax²+bx+c =0

Quadratic formula is x= -b ± √(b²-4ac)

2a

In 4x²− 30x + 45 = 0

a=4, b= -30, c= 45

x=30± √(900-720) = 30±√180 = 30±13.42 =5.42 and 2.07

8 8 8

sorry, if it is wrong

Answer 2

Below

Explanation:

Easiest is probably to use the Quadratic Formula with

a=4

b = - 30

c= 45

to find x = 15/4 ± 3 sqrt(5) / 4

OR:

x=5.42705 x=2.07295