Question

Solve the following quadratic equations by using quadratic formula.
1.) x2 – 8x + 7 = 0
2.) x2 – 2x = 24
3.) x2 = 2x + 25
4.) 2y2 + 7y = 15
5.) 18d + 4d2 = 10
Use the quadratic formula to solve each quadratic equation.
1.) x2 – 4x _ 21 = 0
2.) x2 – 8x + 7 = 0
3.) x2 + 5x + 3 = 0
4.) x2 – 10x = - 9
5.) 3a2 – 16a + 16 – 0

Answer 1

Answer:

use the following formula i am providing you to solve the following question

Step-by-step explanation:

$- b \: + \frac{ + }{ } \sqrt{d} \: \div 2a$

and here the value of d is root b^2 - 4ac

Answer 2

i know this much only...

please mark me as brainliest.......