Question

how to answer two with a grpahing tool of some sort please help

Answer 1

We can solve the question using inequalities:

a)

$-x^2+4x-4≤0$

We can factor the equation using the notable product:

$-(x-2)^2≤0$$(-1)(-(x-2)^2)≤0(-1)$

with the exponent 2, the x value can take any real number.

Hence, the solution is (-∞, ∞)

b)

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