Question

Which of the following are quadratic equations
a) x3-x=X2+2
b) √X +4 = x+1
c) (x + 1)(x2-2) = (x+3)3​

Answer 1

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Answer:

c ) is a quadratic equation .

if we solve we get

x³-2x+x²-2 = x³+27+9x²+27x

x³-x³ +x²-9x²-2x-27x-2-27 = 0

-8x²-29x-29=0

that is a quadratic equations

Answer 2

Step-by-step explanation:

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