Just a variation of your last post, when you were Dan
x^2 + 8x = 7
x^2 + 8x + 16 = 7 + 16
continue....
Use square method to solve this quadratic equation X^2+8X-7=0
4 answers
Please help to finish it
x^2 + 8x + 16 = 7 + 16
(x+4)^2 = 23 , now take the square root of both sides
x + 4 = ±√23
x = -4 ± √23
(x+4)^2 = 23 , now take the square root of both sides
x + 4 = ±√23
x = -4 ± √23
Is that all
1 answer