Determine the type and number of solutions of x^2-8x+16=0

Question

Mathematics

Lyric Pratt

15 December, 16:26

Determine the type and number of solutions of x^2-8x+16=0

+2

Answers (2)

Know the Answer?

Greer · Answer 1

This would factor to (x-4) (x-4) = 0

The discriminant would be b^2-4ac___64-4*1*16=0

The factors show x=4, x=4; a double root and the discriminant shows 0 which is also 1 real rational zero

Gaven · Answer 2

Type?

anyway, what 2 numbers multiply to get 16 and add to get - 8

-4 and - 4

(x-4) (x-4) = 0

(x-4) ²=0

set to zeo

x-4=0

x=4

there is 1 soltuion repeated twice (x=4)