book
Maths Puzzle
Numerical Ability
F(4)=450log3(5t+7) please solve help class in 3 hours cant solve
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book Other Question
when diving -15 / -5 is the answer a positive or negative number?
Is the reciprocal of 12 112 or -12 or -112?
2. Multiply and simplify: x^2-x-20 * x^2+7x+10
___________ ___________
x^2-3x-105 x^2+4x-5