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Coordinate Geometry

Question
CBSEENMA9001720

Find the zero of the polynomial in each of the following cases:
p(x) = 2x + 5

Solution

p(x) = 2x + 5
p(x) = 0
rightwards double arrow space 2 straight x space plus space 5 space equals space 0 space rightwards double arrow space 2 straight x equals space minus 5 space rightwards double arrow space straight x space equals space minus 5 over 2
therefore space minus 5 over 2 is a zero of the polynomial p(x).