Question

Question 23
( x2 + 3x ) + x =​

Answer 1

Step-by-step explanation:

x^2 + 4x

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Answer 2

Answer:

x2−3

See steps

Step by Step Solution:

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x2"   was replaced by   "x^2". 

STEP1: x Simplify — x Equation at the end of step1: (x2) - (3 • 1) STEP 2 :Trying to factor as a Difference of Squares:

 2.1      Factoring:  x2-3 

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

         A2 - AB + BA - B2 =

         A2 - AB + AB - B2 =

         A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 3 is not a square !!

Ruling : Binomial can not be factored as the difference of two perfect squares.

Final result :

x2 - 3

Step-by-step explanation:

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