+4473 sqrt(-49) = 7i
sqrt(-64) = 8i
We have imaginary numbers since square roots of negative numbers cannot be real numbers. We use the "i" notation instead.
7i*8i = 56(i^2)*
*The multiplication of i by i = i*i = i^2 = -1
We get 56(-1) = -56.
+4473 sqrt(-49) = 7i
sqrt(-64) = 8i
We have imaginary numbers since square roots of negative numbers cannot be real numbers. We use the "i" notation instead.
7i*8i = 56(i^2)*
*The multiplication of i by i = i*i = i^2 = -1
We get 56(-1) = -56.
