Respuesta :

x^2 - x - 90 =0
This equation is in standard form ax^2+ bx + c
The sum of the solutions is -b/a (a and b are the coefficients from the equation above, not the solutions to the equation)
The answer is 1/1 = 1

Answer:

Step-by-step explanation:

Alright, let get started.

The given equation is : [tex]x^2-1x-90=0[/tex]

This is a quadratic equation.

The standard form of a quadratic equation is : [tex]AX^2+BX+C=0[/tex]

Comparing the given equation with standard one, the values of A ,B and C are :

A is 1

B is -1

C is -90

Since a and b are the roots of the equation, so the formula for sum of roots a+b will be = [tex]\frac{-B}{A}[/tex]

a+b=[tex]-\frac{-1}{1} =1[/tex]

hence a+b will be 1   :   Answer

Hope it will help :)

Q&A Education