Solve: a. x 2 25 0 b. x 2 + 7x + 10 0
Question:
Solve:
a. x2 − 25 ≥ 0
b. x2 + 7x + 10 ≤ 0
c. x2 + 6x − 7 > 0
d. 14x2 + 17x − 6 ≤ 0
e. 6x2 − 23x + 20 < 0
f. 4 − 7x − 2x2 < 0
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a x2 25 0 Factorising we have x 5x 5 0 The inequality is true when either both factors are positive ...View the full answer
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Related Book For 
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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