Mathematics: Darius uses the polynomial identity (x−y)^2=x^2−2xy+y^2 to show that 9² = 81. what values can darius use for x and y?

mhStep-by-step explanation:frfr...

Darius uses the polynomial identity (x−y)^2=x^2−2xy+y^2

suhailalitariq

11.03.2022

Darius can use x=10 and y=1

Step-by-step explanation:

Darius wants to use the polynomial identity

(x-y)^2=x^2-2xy+y^2

to find 9²

Let x=10 and y=1

Then,

$(10-1)^2=10^2-2\times 10\times 1+1^2\\\\=100-20+1\\\\=80+1\\\\=81$

(10-1)^2=81

implies that 9² = 81

Hence, Darius can use x=10 and y=1

0,0(0 оценок)

danielwu462

26.02.2020

Step-by-step explanation:

frfr

0,0(0 оценок)