Question

Solve for X in the equation

x^2 -4x -9 =29·

Answer 1

x = 8.481 or -4.481

Explanation:

x^2 - 4x - 9 = 29

x^2 - 4x - 9 - 29 = 0

x^2 - 4x - 38 = 0

x1

= −(−4) − √ (−4)2 − 4×1×(−38)

2×1

= 4 − 2 × √ 42

2

≈ −4.481

x2

= −(−4) + √ (−4)2 − 4×1×(−38)

2×1

= 4 + 2 × √ 42

2

≈ 8.481

x = 8.481 or -4.481

Have a nice day!

Answer 2

I don’t know but it seems interesting