Question

x^2-15x-11=0 find zeros

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Answer 1

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Step-by-step explanation:

x2-15x+11=0

Two solutions were found :

x =(15-√181)/2= 0.773

x =(15+√181)/2=14.227

Step by step solution :

Step 1 :

Trying to factor by splitting the middle term

1.1 Factoring x2-15x+11

The first term is, x2 its coefficient is 1 .

The middle term is, -15x its coefficient is -15 .

The last term, "the constant", is +11

Step-1 : Multiply the coefficient of the first term by the constant 1 • 11 = 11

Step-2 : Find two factors of 11 whose sum equals the coefficient of the middle term, which is -15 .

-11 + -1 = -12

-1 + -11 = -12

1 + 11 = 12

11 + 1 = 12

Answer 2

Step-by-step explanation:

12 and -12 are the zeros