Question

${x}^{2} + 16 = 10x$
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Answer 1

Ответ на фотографии:

Answer 2

x2+16-10x=0
x2-10x+16=0
x2-2x-8x+16=0
x•(x-2)-8x+16=0
x•(x-2)-8(x-2)=0
(x-2)•(x-8)=0
x-2=0
x-8=0
x=2
x-8=0
x=2
x=8
Ответ: (x1=2; x2=8)