Question 105088
4X^2+2X-3=0
4X^2+2X=+3
4X^2+2X+1/4=3+1/4
(2X+1/2)(2X+1/2)=13/4
2X+1/2=SQRT13/4
2X=SQRT13/4-1/2
X=(SQRT13/4)/2-(1/2)/2
X=(1/2SQRT13)/2-1/4
X=1/4SQRT13-1/4
X=1/4(SQRT13-1) ANSWER. (.56 & -1.15)
TO VERIFY THIS ANSWER USE THE QUADRATIC EQUATION:
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
AND YOU'LL HAVE ANSWERS OF .56 & -1.15
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USING THIS SAME PROCEDURE AND PROOF, SOLVE THE REMAINING PROBLEMS.