Question 6(iv) Simplify: (iv) 3×44
(iv) 3×44
= 3×4×4×4×4
= 768
Question 7(iv) Simplify: (iv) (−2)3×(−10)3
Factorise: (i) 12x2−7x+1 (ii) 2x2+7x+3 (iii) 6x2+5x−6 (iv) 3x2−x−4