Ellardorado's answer to .'s Junior College 1 H2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Ellardorado
Ellardorado's answer
20 answers (A Helpful Person)
1st
Key idea: Cannot lie = Does not exist = No solution (Which, in the case of quadratics, means discriminant<0).
.
.
1 year ago
where did you get 88 from
Ellardorado
Ellardorado
1 year ago
You want to complete the square on the left side so:
x^2-16x<24
x^2-2(8)x+(8)^2<88