Question

Sejam polinômios: p(x)=2x²-3x+14, f(x)=2x+3, g(x)=x³-x+1 e h(x)=-4x+5

Determine:
A) p(x)+g(x)
B) g(x)-p(x)
C) 2.h(x)
D) f(x)

Answer 1

A) p(x)+g(x) = 2x²-3x+14 + x³-x+1 ==>  x³ + 2x² - 4x + 15 
====================================================
B) g(x)-p(x) = x³-x+1-(2x²-3x+14)  =>  x³ - x + 1 - 2x² + 3x - 14

==> x³ - 2x² + 2x - 13 
=====================================================
C) 2.h(x) = 2(-4x+5 ) ==> - 8x + 10
=====================================================
D) f(x) = 2x+3