Factorise the following
1) 4x² + 20x + 25
2) 9y² - 66yz + 1212²
3) (2x + ⅓)² - (x - ½)²
[ With explanation ]
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1
Answer:
(1) no. done ok
Step-by-step explanation:
4x^2+20x+25
- 4x^2+(10+10)x+25
- 4x^2+10x+10x+25
- 2x(2x+5)+5(2x+5)
- (2x+5)(2x+5)
- (2x+5)^2
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