Question

15. Factorise:
(a) 12x²y³-21x³y²

(b) 63a²-112b²

(c) 9m²+24m+16

(d) y² +10y+24​

Answer 1

$\huge\mathfrak{Answer}$

• 12x²y³-21x³y² = 9x
• 9m²+24m+16 = (3m+4)²

Answer 2

Answer:

1. 12x²y³-21x³y²

3x²y²(4y-7x)

2. 63a²-112b²

7(9a²-16b²)

3. I don't know how to solve

4. ans. 2(y²+5y+12)