exam Maths Puzzle Numerical Ability

write the simplest polynomial equation that has roots 1-2i and -3. xpress the equation using integral coefficients.

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exam Other Question

how do i solve a
log with a base of 3 and exponent of 81
A backyard has dimensions 1 1/2 yards by 2 4/5 yards. What is the area of the back yard in square yards (yd2)?
these are whole numbers and fractions and the yd the 2 are one of those tiny numbers.