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tino4ka555 [31]
3 years ago
11

F(-2) when f(x)=25x-4​

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

25x4 - 2

Step-by-step explanation:

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  25  is the square of  5

Check : 2 is not a square !!

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