(2x + 5)² - (2x - 5)^2 simplify
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ANSWER:
GIVEN:
TO FIND:
Formula used:
SOLUTION:
= (2x+5)² - (2x-5)²
= (2x+5+2x-5)(2x+5-2x+5)
= 4x(10)
= 40x
Value of the above expression is 40x
NOTE:
Some important formulas:
(a+b)² = a²+b²+2ab
(a-b)² = a²+b²-2ab
(a+b)(a-b) = a²-b²
(a+b)³ = a³+b³+3ab(a+b)
(a-b)³ = a³-b³-3ab(a-b)
a³+b³ = (a+b)(a²+b²-ab)
a³-b³ = (a-b)(a²+b²+ab)
(a+b)² = (a-b)²+4ab
(a-b)² = (a+b)²-4ab
Answer:
= (2x+5)^2 - (2x-5)^2
= (2x+5+2x-5)(2x+5-2x+5)
= 4x(10)
= 40x
Step-by-step explanation: