Question

f(x) = 2x° + x2 – 5x + 2; 2,1,-2​

Answer 1

Answer:

2x2+5x+22x>(x+1)1

⇒2x2+5x+22x−(x+1)1>0

⇒(2x2+5x+2)(x+1)2x(x+1)−2x2−5x−2>0

⇒(2x2+5x+2)(x+1)−3x−2>0

⇒(2x2+4x+x+2)(x+1)−(3x+2)>0

⇒(2x+1)(x+2)(x+1)−(3x+2)>0

⇒x∈(−2,−1)∪(−32,−21)

Step-by-step explanation:

please mark me brainlyiest