Polynomials

1If α and β are zeroes of p(x) = x² − 5x + 6, then α + β equals:

• A−5
• B5
• C6
• D−6

2The number of zeroes of the polynomial whose graph cuts the x-axis at 3 points is:

• A1
• B2
• C3
• D0

3A cubic polynomial has at most:

• A1 zero
• B2 zeroes
• C3 zeroes
• D4 zeroes

4The zeroes of x² − 3 are:

• A3 and −3
• B√3 and −√3
• C9 and −9
• D3 and 0

5If 2 is a zero of p(x) = x³ − 4x² + 5x − 2, then on dividing p(x) by (x − 2), the quotient is:

• Ax² − 2x + 1
• Bx² + 2x + 1
• Cx² − 4x + 1
• Dx² − 1