you can help me please
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Answer:
answer in attachment
2 one will the same as the first one
Step-by-step explanation:
hope it helpsssssss
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Answer:
- (-5x+4y+2z)²
- (3a+2b-4c)²
Step-by-step explanation:
Formula used : (a+b+c)² = a²+b²+c² +2ab+2bc+2ac
(i) 25x² + 16y² + 4z² - 40xy +16yz - 20xz
=> (-5x)² + (4y)² + (2z)² +2(-5x)(4y) +2(2z)(4y) +2(-5x)(2z)
=> (-5x+4y+2z)² [ by formula]
(iI) 9a² + 4by² + 16c² + 12ab - 16bc - 24ac
=> (3a)² + (2b)² + (-4c)² +2(3a)(2b) +2(2b)(-4c) + 2(3a)(-4c)
=> (3a+2b-4c)² [ by formula]
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