Question

Evaluate each of the following using

Identities

b.(2x+5)(2x-5)​

Answer 1

Answer:

=(a+)(a-b)

=a^2-b^2

=(2×)^2-5^2

=4×^2-25

Answer 2

Step-by-step explanation:

Explanation:

To multiply these two terms you multiply each individual term in the left parenthesis by each individual term in the right parenthesis.

(2x+5)(2x-5) becomes

(2xX2x)-(2xX5)+(5X2x)-(5X5)

4x2square-10x+10-25

we can now combine like terms

4xsquare+(-10+10)x-25

4xsqusre+0x-25

4xsquare-25