Q1 of 83 Page 90

Solve the following quadratic equations using factorization:
x²— 15x + 56 = 0

x²— (8 + 7)x + 56 = 0

⇒ x² – 8x – 7x + 56 = 0

⇒ x(x – 8) – 7(x – 8) = 0

⇒ (x – 7)(x – 8) = 0

⇒ x – 7 = 0 or x – 8 = 0

⇒ x = 7 or x = 8

Solve the following quadratic equations using factorization:

x² — 12 = 0

Solve the following quadratic equations using factorization:

x² — 7x — 60 = 0

Solve the following quadratic equations using factorization:

Questions · 83

4. Quadratic Equations

1 1 1 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 4 4 1 1 1 1 1 1 2 3 3 4 5 5 5 5 5 5 1 2 3 4 5 6 7 8 1 1 1 1 1 2 2 2 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 23 23 23 23 23 23 23

Solve the following quadratic equations using factorization:x2— 15x + 56 = 0