1 Write the expression in the standard form abi 48i 36i 2

1) Write the expression in the standard form a+bi

(-4+8i) - (3-6i) =

2) Solve the equation in the complex number system.

x²-8x+25=0

(-4+8i) - (3-6i) = -4 + 8i - 3 + 6i

= -7 + 14i

x^2 -8x + 25 = 0

x = [-(-8) +/- sqrt (8^2 - 4*1*25)]/2

x = [8 +/- sqrt -36]/2

x = 4 +/- 3i

x = 4 + 3i OR x = 4 - 3i