SOLUTION: Solve {{{7x^2-9=16}}} using the quadratic formula, writing the answer as a simplified radical expression.
Algebra.Com
Question 48976: Solve using the quadratic formula, writing the answer as a simplified radical expression.
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
[Set the equation equal to zero by subtracting 16 from both sides]
.
.
[Add the term (0x) to make it easier to work with]
.
a=7
b=0
c=-25
[Plug-in the values]
.
[Simplify]
.
.
.
x = +26.4575/14 = 1.8898
x = -26.4747/14 = -1.8898
RELATED QUESTIONS
Solve by using the quadratic formula. Express your answer in simplified radical form.... (answered by checkley75)
Solve by using the quadratic formula.
(18/w^2) - (10/w) + 1 = 0
If your answer... (answered by drj)
Solve by using the quadratic formula.
(18/w^2) - (10/w) + 1 = 0
If your answer... (answered by drj)
Solve using the quadratic formula:
x^2 - 3x = 7x -... (answered by Fombitz)
Solve using the quadratic formula:
x^2 – 3x = 7x – 2
(answered by jim_thompson5910)
Solve using the quadratic formula:
x^2 – 3x = 7x – 2
(answered by nerdybill)
Solve using the quadratic formula:... (answered by Earlsdon)
Use the quadratic formula to solve the equation. Write the radical in simplified form,... (answered by mananth)
using the quadratic formula to solve: x^2+7x+5=0, what is the... (answered by tommyt3rd)