Find the value of : 5a2–7a–8a2+4a2
Answers
Answered by
2
Step-by-step explanation:
5a²-7a-8a²+4a²
a²-7a=0
a(a-7)=0
a=0,7
Answered by
0
Given : 5a² – 7a – 8a² + 4a²
To Find : value
Solution:
5a² – 7a – 8a² + 4a²
Like terms are the terms whose variables and their exponents are the same.
Rearrange the terms and bring like terms together
5a² + 4a² - 8a² - 7a
= 9a² - 8a² - 7a
= a² - 7a
= a (a - 7)
5a² – 7a – 8a² + 4a² = a² - 7a
= a (a - 7)
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