4. The factor of the expression x2 – 2x - 15 is(a) (x - 5)(x - 3) (b

1.	4. The factor of the expression x2 – 2x - 15 is(a) (x - 5)(x - 3) (b) (x - 5)(x + 3)(c) (x + 5)(x + 3) (d) (x + 5)(x - 3)
Answer» Answer: OPTION (B) Step-by-step explanation: x² - 2x - 15 = x² - 5x + 3x - 15 = X(x - 5) + 3(x - 5) = (x + 3)(x - 5)

4. The factor of the expression x2 – 2x - 15 is(a) (x - 5)(x - 3) (b) (x - 5)(x + 3)(c) (x + 5)(x + 3) (d) (x + 5)(x - 3)

Answer»

Answer:

OPTION (B)

Step-by-step explanation:

x² - 2x - 15

= x² - 5x + 3x - 15

= X(x - 5) + 3(x - 5)

= (x + 3)(x - 5)

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4. The factor of the expression x2 – 2x - 15 is(a) (x - 5)(x - 3) (b) (x - 5)(x + 3)(c) (x + 5)(x + 3) (d) (x + 5)(x - 3)​

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4. The factor of the expression x2 – 2x - 15 is(a) (x - 5)(x - 3) (b) (x - 5)(x + 3)(c) (x + 5)(x + 3) (d) (x + 5)(x - 3)