Question

2xsquared + 9x -10=0
quadratic formula

Answer 1

`$x=(-9\pm√(161))/(4)$`

Explanation:

`2x^2+9x-10=0`

Using the quadratic formula:

`$x=(-b\pm√(b^2-4ac))/(2a)$`

`$x=(-9\pm√(9^2-4(2)(-10)))/(2(2))$`

`$x=(-9\pm√(81-(-80)))/(2(2))$`

`$x=(-9\pm√(81+80))/(2(2))$`

`$x=(-9\pm√(161))/(4)$`

Answer 2

Explanation: