book
Maths Puzzle
Numerical Ability
Factor
8ab3 + 27a4
4x2 - 39x + 27
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book Other Question
By solving the following quadratics deduce two rules for the sum and product of the roots of a quadratic using a, b, c.
1. x2 - 5x + 6 = 0
2. x2 = -6x + 7
3. x2 + 12x + -27
4
can you please help me write an algebraic expression for the verbal expression, three times the sum of a and b increased by a?