Question

1. (p-9)(p+9)
2. (5+x)(5-x)
3. (3-c)(3+c)
4. (7+y)(y-7)

1. (2x-3)(2x+3)
2. (3p+8)(3p-8)
3. (4+5a)(5a-4)
4. (3m-4p)(4p+3m)
5. (7a+10b)(10b-7a)
6. (1/4p-1/7q)(1/7q+1/4p)

1. (p²+3q)(3q-p²)
2. (2a-m³)(m³+2a)

Answer 1

Ниже на скрине ответ.

Answer 2

1. (p-9)(p+9) = p2-81
2. (5+x)(5-x) = 25-x2
3. (3-c)(3+c) = 9-c2