The polynomial
polynomial
An algebraic expression consisting of one or more summed terms, each term consisting of a constant multiplier and one or more variables raised to integral powers. is not factorable with real numbers.
ax^2+bx+c (I will make reference to this)
you cannot factorise it but here is how to work out the x values
to solve quadratics you would either factorise or use the quadratic formula
(-b +or- âb^2-4ac)/2a
this produces awkward numbers so we will use the formula
(2 +or- â(-2)^2-4*2*-7)/(2*2)
simplified down gives
(2+2â15)/4= 1/2+1/2â15 this equils 2.43649... (you will have to put it in a calculator)
and
(2-2â15)/4= 1/2-1/2â15 this equils -1.4364... (you will have to put it in a calculator)
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Verified answer
The polynomial
polynomial
An algebraic expression consisting of one or more summed terms, each term consisting of a constant multiplier and one or more variables raised to integral powers. is not factorable with real numbers.
ax^2+bx+c (I will make reference to this)
you cannot factorise it but here is how to work out the x values
to solve quadratics you would either factorise or use the quadratic formula
(-b +or- âb^2-4ac)/2a
this produces awkward numbers so we will use the formula
(2 +or- â(-2)^2-4*2*-7)/(2*2)
simplified down gives
(2+2â15)/4= 1/2+1/2â15 this equils 2.43649... (you will have to put it in a calculator)
and
(2-2â15)/4= 1/2-1/2â15 this equils -1.4364... (you will have to put it in a calculator)