The given expression is :
2xx+3-5(x-2)
We know that,
Aleena expands 2xx+3-5(x-2) as 2x²+3-5x-10. She is mistaken because the sign before 10 should be +10 instead of -10. Hence, the correct expanded form is 2x²+3-5x+10. Hence, this is the required solution.
Correct option is third
Given that:
Need to check which of the expression from given four expressions will be true.
Let's first try to eliminate wrong options.
If we observe carefully, we can say that option 2 that is is not correct as
must be equal to
and not
Lets now modify given expression that is:
On adding 1 to both sides we get
Hence correct option is third one that is