If (x + a) is a factor of 2x2Â + 2ax + 5x + 10, find a.
Let f (x) = 2x2 + 2ax + 5x + 10 Since, (x + a) is a factor of f(x). ⇒ f(–a) = 0 ⇒ 2(– a)2 + 2a.(–a) + 5(–a) +10 = 0                                                          Ans.Â
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The grapn of y = p(x) is given below. Find the number of zeroes of p(x).Â
Solution not provided. Ans. No zero
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The graph of y = p (x) is given below. Find the number of zeroes of p(x).Â
Solution not provided. Ans. 3
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The graph of y = f (x) is given in Fig. How many zeroes are there of f (x)?
The graph of y = f (x) does no cut the x-axis at any point. So, it has no zero.
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The graph of y = p(x) is given below. Find the number of p(x).