Factorise by using suitable identity: 4a2 – 9b2
Answers
Answered by
0
Answer:
-5ab2
Hope it helps to u
Hope it helps to u
Answered by
0
Answer:
4a2−9b2
=(2a)2−(3b)2
=(2a+3b)(2a−3b)
Step-by-step explanation:
Factoring: 4a2-9b2
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 : 4 is the square of 2
Check : 9 is the square of 3
Check : a2 is the square of a1
Check : b2 is the square of b1
Factorization is : (2a + 3b) • (2a - 3b)
Final result :
(2a + 3b) • (2a - 3b)
Note :
please mark me as brainlist
Similar questions
Math,
10 hours ago
History,
10 hours ago
Social Sciences,
10 hours ago
Physics,
19 hours ago
Physics,
19 hours ago
English,
8 months ago
Social Sciences,
8 months ago