Answer:
xy^36
Step-by-step explanation:
( x y -6)² = x² y² - 12 xy + 36
<u><em>Explanation:-</em></u>
Given that the expression ( x y -6)²
Apply formula (a-b)² = a² -2ab + b²
( x y -6)² = (xy)² - 2 × xy× 6 + (6)²
= x² y² - 12 xy + 36
x=9
c
it is c
x=74, y=21. (74, 21).
-x+4y=10
x-3y=11
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y=21
x-3(21)=11
x-63=11
x=11+63
x=74
