3 years ago

Does anyone know this?

1 answer:

7 0

I’m pretty sure it’s 38, when you divide you don’t get an answer shown, same for subtraction, and multiplication. when you add you get 38 which is a choice; unless there is a formula i’m missing then this should be the answer

You might be interested in

Factor the polynomial function over the complex numbers. f(x)=x^3-2x^2+3x-6

Airida [17]

$f(x)=x^3-2x^2+3x-6=x^2(x-2)+3(x-2)=(x-2)(x^2+3)\\\\i=\sqrt{-1}\to i^2=-1\\\\x^2+3=x^2-(-3)=x^2-3i^2=x^2-(\sqrt3)^2i^2)=x^2-(i\sqrt3)^2\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\\boxed{f(x)=(x-2)(x-i\sqrt3)(x+i\sqrt3)}$