Question

1)X²-6x+8
2)x²-5x-50
3)x²-2x-63

Answer 1

Answer:

1). (x - 4)(x - 2)

2). (x - 10)(x + 5)

3). (x - 9)(x + 7)

Solution:

1). x² - 6x + 8

=> x² - 6x + 8

=> x² - 4x - 2x + 8

=> x(x - 4) - 2(x - 4)

=> (x - 4)(x - 2)

2). x² - 5x - 50

=> x² - 5x - 50

=> x² - 10x + 5x - 50

=> x(x - 10) + 5(x - 10)

=> (x - 10)(x + 5)

3). x² - 2x - 63

=> x² - 2x - 63

=> x² - 9x + 7x - 63

=> x(x - 9) + 7(x - 9)

=> (x - 9)(x + 7)