Question

2.Factorise the following expressions

(i) 7x–42

(ii) 6p–12q

(iii) 7a2+ 14a

(iv) -16z+20 z3

(v) 20l2m+30alm

(vi) 5x2y-15xy2

(vii) 10a2-15b2+20c2

(viii) -4a2+4ab–4 ca

(ix) x2yz+xy2z +xyz2

(x) ax2y+bxy2+cxyz​

Answer 1

Step-by-step explanation:

1. 7(x-6)

2. 6(p-2q)

3. 7(a2+2a)

4. 4(-4z+5z3)

5. 10m(2l2+3al)

6. 5(x2y-3xy2)

7. 5(2a2-3b2+4c2)

8. 4(-a2+ab-ca)

9. 2x+x2+2y+y2+2z+z2 = 2x+2y+2z+x2+y2+z2

10.