Fan and Medal !

Explain how quadratic trinomial can be factored by grouping. Include examples in your explanation.

Question

Fan and Medal !

Explain how quadratic trinomial can be factored by grouping. Include examples in your explanation.

anonymous · Answer

@johnweldon1993

anonymous · Answer

4x^3 + 4x^2 + 4x + 4 = 0
This is a 4 term polynomial
4x^2(x + 1) + 4(x + 1) = 0
(4x^2 + 4)(x + 1) = 0
That's how it's factored. i don't know about the quadratic trinomial.

anonymous · Answer

Thanks !

anonymous · Answer

Now I just need the quadratic trinomial

anonymous · Answer

Hows this ?

a three term trinomial can be made into a four term polynomial.
4x^2+7x+3=4x^2+4x+3x+3

johnweldon1993 · Answer

Oh...well a quadratic trinomial is just a polynomial with a highest degree of 2

so

$$\large x^2 - x + 2$$

Would be an example...

Factoring this would just be

$$\large x^2 - x + 2 = 0$$
$$\large (x -2)(x - 1) = 0$$

johnweldon1993 · Answer

And above what you posted last...is another way to factor it as well...now you would be able to factor by grouping that way....but the method you have up at the top is correct as well

anonymous · Answer

ok cool thanks, can you help me with something else ?