Question

X^2+3x-18=0 pleaseeee​

Answer 1

Ответ: дискриминант 9+4*18=81, корни х1=(-3+9)/2=3, х2=(-3-9)/2=-6.

Пошаговое объяснение:

Answer 2

х² + 3х - 18 = 0

a = 1

b = 3

c = -18

D = 9 + 4•1•18 = 81, √D=9

x1 = -3+9/2 = 3

x2 = -3-9/2 = -6

Ответ:

-6; 3

Answer 3

Sure, I can help you solve the quadratic equation X^2 + 3X - 18 = 0.

To solve this equation, we can use the quadratic formula, which is given by:

X = (-b ± √(b^2 - 4ac)) / 2a

where a, b, and c are the coefficients of the quadratic equation in the standard form (AX^2 + BX + C = 0).

In the equation X^2 + 3X - 18 = 0, the coefficients are:

a = 1 b = 3 c = -18

Now, let's plug these values into the quadratic formula and calculate the solutions:

X = (-(3) ± √(3^2 - 41(-18))) / 2*1 X = (-3 ± √(9 + 72)) / 2 X = (-3 ± √81) / 2 X = (-3 ± 9) / 2

Now, we have two possible solutions:

1. X = (-3 + 9) / 2 X = 6 / 2 X = 3

2. X = (-3 - 9) / 2 X = -12 / 2 X = -6

So, the solutions to the quadratic equation are X = 3 and X = -6.