Evaluate: 2xy^2-3xy-7 if x=-4and y=5
1 answer:
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Answer:
D
Step-by-step explanation:
the equation of a vertical line is of the form x = c where c is a constant
3x - 2 = 0 is in this form if we add 2 to both sides and divide by 3
3x = 2 ⇒ x = → D
Given:
The given polynomial is
When it divided by (x+1) gives remainder 0 and when divided by (x-2) gives remainder of 45.
To find:
The values of m and n.
Solution:
According to the remainder theorem, if a polynomial P(x) is divided by (x-c), then the remainder is P(c).
Let the given polynomial be P(x).
When it divided by (x+1) gives remainder 0. So, P(-1)=0.
...(i)
When P(x) is divided by (x-2) gives remainder of 45. So, P(2)=0
...(ii)
Multiply 2 on both sides of (i).
...(iii)
Subtract (iii) from (ii).
Putting m=5.5 in (i), we get
Therefore, the values of m and n are 5.5 and -21.5 respectively.