Math, asked by ambikamahendkar1981, 3 days ago

x²+2x-9=0 for this equation the value of triangle is ? A)20 B)-40 C)40 D)36

Answers

Answered by keka68

0

Answer:

4.5

Step-by-step explanation:

x^2+2x‐9=0

x×x+2x‐9=0

x×x+2x=0+9

x+2x=9÷x

2x=9÷x×x

2x=9

x=9÷2

x=4.5

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