expand using a suitable identity
(3a-5b) ^3
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Answered by
16
Answer:
To expand
(3a - 5b - c)²
It can be expanded using algebraic identity
(a + b + c)² = a²+ b²+ c² + 2ab + 2bc + 2ac
where,
a = 3a
b = (-5b)
c = ( -c)
So,
(3a +(-5b)+(-c)² = (3a)² + (-5b)² + (-c)² + 2(3a)(-5b) + 2(-5b)(-c) + 2(3a)(-c)
= 9a² + 25b² + c² - 30ab + 10bc - 6ac
is the answer
Explanation:
hope it helps you
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Answered by
1
Answer:
hope it helps you
plzz mark me as ur brainliast ❤️❤️❤️❤️
Explanation:
Answer:
To expand
(3a - 5b - c)²
It can be expanded using algebraic identity
(a + b + c)² = a²+ b²+ c² + 2ab + 2bc + 2ac
where,
a = 3a
b = (-5b)
c = ( -c)
So,
(3a +(-5b)+(-c)² = (3a)² + (-5b)² + (-c)² + 2(3a)(-5b) + 2(-5b)(-c) + 2(3a)(-c)
= 9a² + 25b² + c² - 30ab + 10bc - 6ac
is the answer
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