Question

Resolva a equação An,2+an-1,2=32

Answer 1

Equação:

an² + an - 1,2 = 32

an² + an - 1,2 - 32 = 0

an² + an - 33,2 = 0

a) 1   b) 1   c) - 33,2

Fórmula de Bhaskara:

[- b ±√(b² - 4ac)]/2a

[- 1 ±√(1² - 4(1)(-33,2))]/2(1)

[- 1 ±√(1 + 132,8)]/2

- 1±√133,8/2

x' = (- 1 + √133,8)/2 ou x' = 5,28

x'' = (- 1 - √133,8)/2 ou x'' = - 6,28

Bons estudos!

Answer 2

$\large\boxed{\boxed{\boxed{{Ol\'a}}}}}$

$an^2+an-1,2=32$

$an^2+an-1,2-32=0$

$an^2+an-33,2=0$

onde:

a=1 ; b = 1 e c=-33,2

$\Delta=b^2-4.a.c$

$\Delta=1^2-4.1.(-33,2)$

$\Delta=1+132,8$

$\Delta=133,8$

$\LARGE{x_{1},_{2}=\frac{-b±\sqrt{\Delta}}{2.a}}$

$\LARGE{x_{1},_{2}=\frac{-1±\sqrt{133,8}}{2.1}}$

$\LARGE{x_{1}=\frac{-1+\sqrt{133,8}}{2}}$

$\LARGE{x_{2}=\frac{-1-\sqrt{133,8}}{2}}$

:::::::boa interpretação::::::

08.04.2019