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Expansion and factorisation of algebric expressions.
Contributed by: Adnan
  • 1. -3k(-2h-7k)
A) 6hk+21k2
B) -6hk-21k2
C) 6k-14hk
  • 2. 4x(3x+y)-3x(2x-5y)
A) 182+19xy
B) 6x2+19xy
C) 6x2-19y
  • 3. (e+f)(e+5f)
A) e2+5ef+5f2
B) e2+6ef+5f2
C) e+ef+f2
  • 4. (2x+1)(x2+3x-1)
A) 2x3+7x2+x-1
B) 2x2-7x2+x+1
C) 2x3+7x-x+1
  • 5. (4-3t)2
A) 4-9t2
B) 42-3t2
C) 16-24t+9t2
  • 6. 8992
A) 808208
B) 808200
C) 808201
  • 7. if x2+y2=86 and xy=-16 find the value of (x-y)2
A) 116
B) 109
C) 118
  • 8. 10x3+15xy+20xz
A) 3x(4z+2y)
B) x(3y+6z)
C) 5x(2x2+3y+4z)
  • 9. M3+M2(2m-1)
A) M2(3m-1)
B) M5+2
C) M(3+5)
  • 10. p(4m-n)-2p(m+2n)
A) P2+n
B) p(m+n)
C) P(2m-5n)
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