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Find the values of x for which the funct...

Find the values of `x` for which the functions `f(x)=3x^2-1` and `g(x)=3+x` are equal

Text Solution

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`:. f(x)=g(x)`
`rArr 3x^(2)-1=3+x`
`rArr 3x^(2)-x-4=0`
`rArr 3x^(2)-4x+3 x-4=0`
`rArrx(3x-4)+1(3x-4)=0`
`rArr (3x-4)(x+1)=0`
`:. x=-1,(4)/(3)`
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