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Maths Puzzle
Numerical Ability
solve the question or formula for the variable specified.
I=prt, for t
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book Other Question
Factorise completely: (^= squared)
1. 6+2x
2. xy-x
3. b(2x-y)-c(2x-y)
4. 15x-3x^
5. 2p(3-q)+3(q-3)
6. x^+xy+y^+yx
7. a^-16
8. 4y^-81
9. x^-9x+18
10. x^n-5xn=
using the foil method find the product.(x+3)(x2-2x+6)
then i got x3+-6x2+-36x+18 as my answer but my book got x3+x2+18
can u show me how they got that answer or what i did wrong