SOLUTION: solve 16x^2-25 using the quadratic formula!

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Question 884813: solve 16x^2-25 using the quadratic formula!
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!

16x^2-25
16x^2+0x-25
here a= 16 b=0 and c =-25
Find the roots of the equation by quadratic formula

a= 16 b= 0 c= -25

b^2-4ac= 0 - -1600
b^2-4ac= 1600 sqrt%28%091600++++%09%29= 40
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=( -0 + 40 )/ 32
x1= 5/4
x2=( -0 -40 ) / 32
x2= -5/4
(5/4, -5/4)