a. 5² – x²
b. a²- 2²
c. a² – 9
d. 4x² – 9
e. 16x² – 9y²
f. –
Faktorkanlah :
ALjabar
a² – b² = (a + b)(a – b)
5² – x² = (5 + x)(5 – x)
a² – 2² = (a + 2)(a – 2)
a² – 9 = a² – 3² = (a + 3)(a – 3)
4x² – 9 = (2x)² – 3² = (2x + 3)(2x – 3)
16x² – 9y² = (4x)² – (3y)² = (4x + 3y)(4x – 3y)
16x⁸ – 9y⁴ = (4x⁴)² – (3y²)² = (4x⁴ + 3y²)(4x⁴ – 3y²)