Question

f(x) = 5(x2 − 4x + ____) + 15, what number belongs in the blank

Answer 1

Answer:

20

Step-by-step explanation:

f(x)=5(x^2-4x+_)+15

=> f(x)=5x^2-20x+5+15

=> f(x)=5x^2-20x+20x Ans.

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