3 years ago

Could someone please help me asap!! Pleasseeeee and thanks.

1 answer:

8 0

Answer:

Step-by-step explanation:

a² - b² = (a + b) (a - b)

1)x² - 36 = x² - 6² = (x + 6)(x-6)

2) 4x² - 16 = 4x² - 4*4 = 4(x² - 4)

= 4(x² -2²)

= 4(x + 4)(x-4)

3) 9x² -1 = 3²x² - 1² = (3x)² - 1²

=(3x + 1)(3x - 1)

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