A quadratic polynomial, whose zeroes are -3 and 4, is
(a) x²- x + 12
(b) x² + x + 12
(c) x2/2−x/2−6
(d) 2x² + 2x – 24
how and why please?......
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Answer:
a)x2-x +12.
f(x)= -3
f(-3)= x2-x+12
= (-3)2-(-3)+12
=6+3+12
= 21 is the answer
f(x)=4
x2-x+12
(4)2-4+12
8- 4+12
9-4
5
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