Question

(x-4)(4x+6)=(x-5)^2 памогите пж

Answer 1

(x-4)(4x+6)=(x-5)^2
4х^2-16х+6х-20=х^2-10х+25
4х^2-20=х^2+25
3х^2=45
х^2=15
х=√15
х=-√15