SOLUTION: Find all the zeroes, real and/or complex, for f(x)=2x^2+10x-3.

Algebra.Com
Question 674269: Find all the zeroes, real and/or complex, for f(x)=2x^2+10x-3.
Answer by ReadingBoosters(3246)   (Show Source): You can put this solution on YOUR website!
f(x) =

...
Divide the entire equation by 2


...

(x+2.5)(x+2.5) = 7.75

...
= +/-
x+2.5 = +/-
x = -2.5 +/-
...
x = -2.5 +
x = -2.5 + 2.78

x = -2.5 -
x = -2.5 - 2.78

...

.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.

RELATED QUESTIONS

Find all the zeroes for f(x)=x^3+4x^2-5x and write the function f(x) as a product of... (answered by ewatrrr)
what are the rational zeroes and all real zeroes for... (answered by jsmallt9)
find all solution ( real and complex) to the equation: x^4+3x^2=x^3 find all zeros... (answered by Fombitz)
FIND ALL REAL ZEROES OF THE FUNCTION F(X)=2X^3+15X^2+22X-15 (answered by lynnlo)
For the polynomial function f(x) = x^4 - x^3 - 2x^2 - 4x - 24 Find all real zeroes... (answered by venugopalramana)
How do you find the complex zeroes of the ploynominal function... (answered by jim_thompson5910,ewatrrr,lwsshak3)
Find all zeros (real and complex of the following polynomial) NO DECIMALS! f(x)=... (answered by richwmiller)
x^3-2x^2+10x a what are all the zeros of, real, and complex B: Factor P... (answered by josgarithmetic)
f(x)=2x^4-x^3-7x^2+4x-4 I am looking for all real... (answered by ikleyn)