Question

Factorización

• 144 – x2y2 =

• 9x2 + 18xy + 36y2 =

• 12x3y – 48x2y2 =

• 12a2b + 24ab2 – 36y2 =

• 49y2 – 14y + 1 =

• 16m2n2 – 9p2 =

• X2 – 2x – 15 =

• 9p2q + 72pq2 =

• 25 – 4a2 =

• 12 – 4x – x2 =

Answer 1

1) 144-x²y²= (12-xy)(12+xy)
2) 9x²+18xy+36y²= (3x+6y)²
3) 12x³y - 48x²y ²= 12x²y(x-4y)
4) 12a²b+24ab²-36y²= 12(a²b+2ab²-3y²)
5) 49y² -14y +1= (7y-1)²
6) 16m²n²- 9p²= (4mn-3p)(4mn+3p)
7) x²-2x-15= (x-5)(x+3)
8) 9p²q + 72pq²= 9pq(p+8q)
9) 25-4a² = (5-2a)(5+2a)
10) 12-4x-x²= -x²-4x+12 = x²+4x-12 = (x+6)(x-2) 
                                                                                  ..............Kd