Question

Factorise the following expressions. 1. 15a ^ 2 * b ^ 2 + 25a ^ 2 * b * c ^ 2 = 155 2. 4a²+12a +9 100x²-364² 4. x² +7x+12. = 5xaxa SECTION B[3 * 2 = 6] II Factorise the following. 5. x4-(y+z) 4 6. 6yz-42+6-94 7. m ^ 4 = 81​

Answer 1

Answer:

here....

Step-by-step explanation:

(i)25abc2−15a2b2c=5abc(5c−3ab)

(ii)x2yz+xy2z+xyz2=xyz(x+y+z)

Answer 2

Step-by-step explanation:

15+2=17

25+2=27

27*17=155

2. 4*4=16+12+202000-7288+19=5xaxa