exam Maths Puzzle Numerical Ability

Solve fir r: r with the exponent of 2 + 5r - 14 = 0

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exam Other Question

find te area of the triangular region enclosed by the y-axix and the graphs of 6x+5y=30 and 2x-y=2. Simplify:

Add: (3x to 2nd power - 5x to 3rd power - x) -2(x to 3rd power - 3x + 4)

Multiple (3x -5)(7x -5)