Question

factorise 49p²-16 expressions​

Answer 1

Step-by-step explanation:

(7p)^2 - 4^2

a^2 - b^2 = (a+b)(a-b)

therefore a = 7p and b = 4

then.,

49p^2 - 16 = (7p+4)(7p-4)

Answer 2

Answer:

identity

Step-by-step explanation:

the question is:

49p²-16

Here we can see that

• 49 = 7²
• 16 = 4²

we also know that

• (ab)² = a²b²

so

49p² = 7²p² = (7p)²

by using the identity (a+b)(a-b)=a²-b²

(7p)² - 4² = (7p + 4)(7p - 4)

and this is the answer