Question

(x²-9) (x²-7x+10) < 0

Answer 1

(x²-9) (x²-7x+10) < 0

x^{4} - 7x^{3} +10x^{2} -9x^{2} - 63x - 90 < 0

x^{4} -7x^{3} +x^{2} -63x < 90