Question: Solve: a. x 2 25 0 b. x 2 + 7x + 10 0 c. x 2 + 6x 7 >

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 full answer

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