The difference of two trinomials is x2 - 10x + 2. If one of the trinomials is 3x? - 11x - 4, then which expression could be the othe
trinomial?
0 27-x-2
2x2 + x + 6
4x2 + 21x + 6
0
4x2
21x-2

Respuesta :

frika

Answer:

[tex]2x^2-x-6[/tex]

or

[tex]4x^2-21x-2[/tex]

Step-by-step explanation:

The difference of two trinomials [tex]P(x)[/tex] and [tex]Q(x)[/tex] is [tex]x^2 - 10x + 2.[/tex] This means that

[tex]P(x)-Q(x)=x^2-10x+2[/tex]

or

[tex]Q(x)-P(x)=x^2-10x+2[/tex]

If one of the trinomials is [tex]P(x)=3x^2-11x - 4,[/tex] then

[tex](3x^2-11x-4)-Q(x)=x^2-10x+2[/tex]

or

[tex]Q(x)-(3x^2-11x-4)=x^2-10x+2[/tex]

1. If [tex](3x^2-11x-4)-Q(x)=x^2-10x+2,[/tex] then

[tex]Q(x)=(3x^2-11x-4)-(x^2-10x+2)\\ \\Q(x)=(3x^2-x^2)+(-11x+10x)+(-4-2)\\ \\Q(x)=2x^2-x-6[/tex]

2. If [tex]Q(x)-(3x^2-11x-4)=x^2-10x+2,[/tex] then

[tex]Q(x)=(x^2-10x+2)+(3x^2-11x-4)\\ \\Q(x)=(x^2+3x^2)+(-10x-11x)+(2-4)\\ \\Q(x)=4x^2-21x-2[/tex]