Question

A={x:x€R;x^2+3x-10=0 }. Write
the power set of A​

Answer 1

Answer:

x^2 + 5x - 2x - 10 = 0

x(x + 5) - 2(x + 5) = 0

(x - 2)(x + 5) = 0

x = 2 , 5

A = {2, 5}

Power set = { {2}, {5}, { }, {2,5} }