exam Maths Puzzle Numerical Ability

Multiply, using the vertical method.

(2r-3s)(4r squared + 6rs + 9s squared)

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exam Other Question

Multiply:
(x2 + 3x � 1)(x2 � x + 2) NEED HELP SOLVING:

BERMUDA TRIANGE HAS A PERIMETER OF 3075MI. THE SHORTEST SIDE MEASURES 75MI LESS THAN THE MIDDLE SIDE, AND THE LONGEST SIDE MEASURES 375MI MORE THAN THE MIDDLE SIDE. FIND THE LENGTHS OF THE THREE SIDES.