1 month ago

The equation x2 – 1x – 90 = 0 has solutions {a, b}. What is a + b

2 answers:

8 0

X^2 - x - 90 =0
This quadratic equation is in the standard format ax^2+ bx + c
The total of the solutions can be found using -b/a (where a and b are the coefficients from the original equation, not the solutions)
The resulting answer is 1/1 = 1

Zina [12.3K]1 month ago

3 0

Answer:

Step-by-step explanation:

Let's begin.

The equation presented is: $x^2-1x-90=0$

This represents a quadratic equation.

The standard format of a quadratic equation is: $AX^2+BX+C=0$

By relating the current equation to the standard format, the coefficients A, B, and C are:

A is 1

B is -1

C is -90

The roots a and b of the equation enable us to apply the formula for the sum of roots a+b which is given by = $\frac{-B}{A}$

Thus, a+b will yield 1: Answer

Hope this is helpful:)

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