Question

Verify the following.

(i) -22 x [(-3) +23] = (-22) (-3) + (-22) x 23
​

Answer 1

Answer:

Answer: C

\(x^2-22x+117\)

\(x^2-13x-9x+117\)

\(x(x-13)-9(x-13)\)

\((x -13) (x -9)\)

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hope it will help

Answer 2

Solve by Substitution :

// Solve equation [1] for the variable  y 

 

[1] y = -x + 23

// Plug this in for variable  y  in equation [2]

  [2] 15x - 7•(-x +23) = 193   [2] 22x = 354

// Solve equation [2] for the variable  x 

  [2] 22x = 354    [2] x = 177/11 

// By now we know this much :

  x = 177/11   y = -x+23

// Use the  x  value to solve for  y 

  y = -(177/11)+23 = 76/11 

Solution :

 {x,y} = {177/11,76/11}