immaboy2001 immaboy2001
  • 30-07-2019
  • Mathematics
contestada

Describe the nature of the roots for this equation 2x^2+5x-7=0

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absor201
absor201 absor201
  • 30-07-2019

Answer:

x = -7/2 and x = 1

So, there are 2 roots of this equation.

And the roots are real numbers.

Step-by-step explanation:

We need to describe the nature of roots for this equation

2x^2+5x-7=0

2x^2-2x+7x-7=0

2x(x-1)+7(x-1)=0

(2x+7)(x-1)=0

2x+7=0, x-1=0

2x=-7, x =1

x = -7/2 and x = 1

So, there are 2 roots of this equation.

And the roots are real numbers.

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