Question

(5x2-2x+3)-(3x2-7x+5)

Answer 1

Resposta:

2 x²+ 5 x - 2

Explicação passo a passo:

(5 x²- 2 x + 3) - (3 x²- 7 x + 5)

x (2 x + 5) - 2

2 (x + 5/4)²- 41/8

1/8 (4 x + 5)² - 41/8  

x = -5/4 -(41)/4

x = (41)/4 - 5/4  

Δ = 41

{y>=-41/8}  

d/dx((5 x² - 2 x + 3) - (3 x² - 7 x + 5)) = 4 x + 5

(-2 + 5 x + 2 x^²) dx = (2 x³)/3 + (5 x²)/2 - 2 x +  {(5 x²- 2 x + 3) - (3 x^² - 7 x + 5)} = -41/8 x = -5/4

(1/4 (-5 -(41)))^(1/4 (-5 +(41))) (-2 + 5 x + 2 x²) dx = -(41 (41))/24≈-10.9387

(1/4 (-5 - (41)))^(1/4 (-5 + (41))) (-2 + 5 x + 2 x²) θ(2 - 5 x - 2 x²) dx = -(41)(41))/24≈-10.9387