Tolong dong jawabannya

1) a² – b² = (a + b) (a – b)
2) x² – 64 = (x + 8) (x – 8)
3) 49 – a² = (7 + a) (7 – a)
4) 36.y² – 1 = (6y + 1) (6y – 1)
5) 25.p² – 36.q² = (5p + 6q) (5p – 6q)
6) 81.p² – 100.q² = (9p + 10q) (9p – 10q)
7) 3p² – 12 = 3 (p² – 4)
                = 3 (p + 2) (p – 2)
8) 5x² – 45y² = 5 (x² – 9y²)
                  = 5 .(x + 3y) (x – 3y)
9) 8.m² – 32.n² = 8 (m² – 4n²)
                     = 8 (m + 2n) (m – 2n)
10)  – 16 = (a² + 4) (a² – 4)
              = (a² + 4) (a + 2) (a – 2)

Penyelesaian :

1) a² – b² = (a + b)(a – b)
2) u² – 64 = (u + 8)(u – 8)
3) 49 – a² = (7 + a)(7 – a)
4) 36y² – 1 = (6y + 1)(6y – 1)
5) 25p² – 16q² = (5p + 4q)(5p – 4q)
6) 81p² – 100q² = (9p + 10q)(9p – 10q)
7) 3p² – 12 = 3(p² – 4)
                   = 3(p + 2)(p – 2)
8) 5u² – 45y² = 5(u² – 9y²)
                       = 5(u + 3y)(u – 3y)
9) 8m² – 32n² = 8(m² – 4n²)
                         = 8(m + 2n)(m- 2n)
10) a^4 – 16 = (a² + 4)(a² – 4)
                       = (a² + 4)(a + 2)(a – 2)

semoga membantuu…