what is [4-x]²
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Answer:
It is a quadratic equation.
Step-by-step explanation:
[4 - x]^2 = 0
(4)^2 + (-x) ^2-2×4×-x = 0 [(a-b) ^2=a^2+b^2-2ab]
16+x^2+8x = 0
x^2+8x+16 = 0
So, it is a quadratic equation.