(-4)^2-3[(-9)/3]^2
Simplify the following: (-4)^2-3 ((-9)/3)^2
The gcd of -9 and 3 is 3, so (-9)/3 = (3 (-3))/(3×1) = 3/3×-3 = -3: (-4)^2-3×-3^2
(-3)^2 = 9: (-4)^2-3×9
(-4)^2 = 16: 16-3×9
-3×9 = -27: 16+-27
16-27 = -(27-16): -(27-16) Answer: |-11
