The simplified form of the expression is 58
Complex numbers are square root of negative numbers. For instance;
√-1 = i
Given the equation
(2 + √-25)(4 - √-100)
From the given expression
√-25 = 5i
√-100 = 10i
Substitute
(2+5i)(4-10i)
Expand
2(4) -2(10i) + 5(4i) - 5i(10i)
8 - 20i + 20i - 50i²
8 - 50(-1)
8 + 50
58
Hence the simplified form of the expression is 58
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