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2.12.1 Quadratic Functions, SPM Practice (Paper 1)


Question 1:
Solve the following quadratic equations by factorisation.
(a) x25x10=4(b) 3x2x2=0(c) 11a=2a2+12(d) 2x+73x2=x

Solution:






Question 2:
Solve the following quadratic equations by completing the square.
(a) 5x2+10x3=0(b) 2x25x6=0

Solution:






Question 3:
Solve the following quadratic equations by using quadratic formula. Give your answer in four significant figures.
(a) (x+1)(x5)=15(b) x2+3x2x2x1=3

Solution:






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