Question

2x²+ 13x +5=0 solve by formula method​

Answer 1

Answer:

x = 44 or 41

Step-by-step explanation:

-b² ± √4ac

2a

quadratic equation

x² + x + 1 = 0

a = 1

b = 1

c = 1

so.

2x² + 13x + 5 = 0

a = 2

b = 13

c = 5

-b² ± √4ac

2a

(-13)² ± √4 * 2 *5

2 * 2

(-13)² ± √40

4

(-13)² + √40 or (-13)² - √40

4 4

169 + 6.3246 or 169 - 6.3246

4 4

x = 175.3246 or 162.6754

4 4

x = 43.8312. or 40.6689

x ≈ 44 or 41