Best Answer

Assuming the missing sign is "minus" then you have the difference between two squares.

This is solved as (x + y)(x - y).

In your example x = 4a and y = 2b so the factorisation is (4a + 2b)(4a - 2b) or more completely: (4)(2a + b)(2a - b).

Q: How do you factor 16a2 4b2?

Write your answer...

Submit

Still have questions?

Continue Learning about Basic Math

4(4a2 - b2) 4(2a + b)(2a - b)

4(16a4 + b2)

Not sure about the greatest commom factor, but the greatest common factor is b.

GCF(28a5, 16a2) = 4a2.

a proper factor is a factor.

Related questions

4(4a2 - b2) 4(2a + b)(2a - b)

16 - a2

2a3-16a2+30a Factor out 2a: 2a(a2-8a+15) (2a)(a-5)(a-3) This is the most factored form of this expression.

(4a - 3b)(4a + 3b)

4(16a4 + b2)

(2b - 1)(2b + 1)

Not sure about the greatest commom factor, but the greatest common factor is b.

4b2-16 =4(b2-4) =4(b+2)(b-2)

GCF(28a5, 16a2) = 4a2.

12b3

(4a)2 or 16a2

5.56x45