Please help!! What Find the Error and explain why it is wrong!

First image attached

The error was done in Step E, because student did not multiply by the negative sign in numerator. Step E must be .

Second image attached

The error was done in Step C, because the student omitted the of the algebraic identity . Step C must be

Step-by-step explanation:

First image attached

The error was done in Step E, because student did not multiply by the negative sign in numerator. The real numerator in Step E should be:

Hence, Step E must be .

Second image attached

The error was done in Step C, because the student omitted the of the algebraic identity . Step C must be

And further steps are described below:

Step D

Which according to the Quadratic Formula, represents a polynomial with complex roots. That is: (, , )

(Conjugated complex roots)

Step E

Step F

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step-by-step explanation:

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)