Question

The value of 5a^2-3a^2+4 when a=2 is

pls solve
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Answer 1

Step-by-step explanation:

Equation is a identity if all its coefficients are equal to zero simultaneously

⇒a

2

−3a+2=0

⇒a=2,1

⇒a

2

−5a+6=0

⇒a

2

−4=0

⇒a=±2

⇒coefficients are equal to zero simultaneously when a=2

Therefore only one value of 'a' the equation is identity in x................

Answer 2

Answer:

hope this helps you :)

Step-by-step explanation:

=5(2)^2-3(2)^2+4

=5(4)-3(4)+4

=20-12+4

=24-12

=12