Question

find (3x +5) (3x -5)
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Answer 1

Step-by-step explanation:

use the formula for finding (a + b) ( a -b)

= a2 - b2

(3x)2- (5)2

9x2 - 25

Answer 2

Answer:

9x^2 -25

Step-by-step explanation:

(3x +5) (3x -5)

(3x)^2 - (5)^2 [since, (a +b)(a -b)= a^2 - b^2

9x^2 -25