Question

Express the following as in the form of (a+b)(a-b) a 2 – 64​

Answer 1

Step-by-step explanation:

Answer: (i) a2 – 64 = a2 – 82 = (a + 8)(a – 8). (ii) 20a2 – 45b2 = 5(4a2 – 9b2) = 5(2a + 3b)(2a – 3b). (iii) 32x2y2 – 8 = 8( 4x2y2 – 1)

Answer 2

Answer:

Step-by-step explanation:

a² -64

⇒ (a-8) (a+8)

Hope this helps you