Which product is equivalent to 25x2 – 16?
(5x − 4)(5x + 4)
(5x + 8)(5x − 8)
(5x − 4)(5x − 4)
(5x − 8)(5x − 8)

(5x - 4)(5x + 4)

Explanation:

We have to find two numbers that when differed to 0, they also multiply to 16. Those numbers are consecutive fours. Now, with the two fours, we put them into place, and since we are dealing with perfect squares, it makes it a whole lot easier because we need a negative and positive 4 to equal -16. 25x² is simply breaking it down into its NON-NEGATIVE square root, is 5x.

** Use this method ONLY when B is 0.

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succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: