Question

Solution
a. p2 – 144
Here
P р​

Answer 1

Answer:

Factoring: p2-144

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 : 144 is the square of 12

Check : p2 is the square of p1

Factorization is : (p + 12) • (p - 12)