[tex] {x}^{2} + 70 = 17x \\ {x }^{2} + 70 - 17x = 0 \\ {x}^{2} - 17x + 70 = 0 \\ (x - 10)(x - 7) = 0 \\ \\ x - 10 = 0 \\ x = 10 \\ \\ x - 7 = 0 \\ x = 7[/tex]
I hope I helped you^_^
