exam Maths Puzzle Numerical Ability

Can you help me simplify
(4+8i) * (-9 + i)
Thank you

Read Solution (Total 0)

exam Other Question

how do i find the x- intercepts of -x^4+1.5x^3+8x^2-1.5x-7? The sum of the digits of a two-digit numeral is 8. If the digits are reversed, the new number is 18 greater than the original number. Find the original number.