ALGEBRA

(3x - 5y)^2 =
1. 9(x^2) −30xy +25(y^2)
2. 9(x^2) + 25(y^2)
3. 9(x^2) − 25(y^2)
4. 25(x^2) −30xy +9(y^2)
53 × 47 =
1. 3941
2. 3491
3. 2941
4. 2491
Factorise 9(x^2) +30xy +25(y^2)
1. (3x+5y)
2. (3x+5y)(3x+5y)
3. (5x+3y)(5x+3y)
4. (5x+3y)
Factorise (x^2) −8x +16
1. (4 - x)(x - 4)
2. (x - 5)(x - 3)
3. (x - 4)(x - 4)
4. (x - 3)(x - 5)
Factorise 64(x^2) −112xy +49(y^2)
1. (8x - 7y)(8x - 7y)
2. (7x - 8y)(7x - 8y)
3. (8x - 7y)
4. (7x - 8y)