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Solve 2x^2 - x - 21 by factorising

Lets begin by splitting the bx term to make factorising possible: 2x2 - x - 21 is the same as 2x2 - 1x - 21What two numbers = -1 when added, and = -42 when multiplied together?(note ...

LQ
Answered by Lara Q. Maths tutor
8331 Views

Solve the quadratic equation (x^2)-7x+10=0

  1. x=5 2) x=2
DG
Answered by Dilhan G. Maths tutor
3151 Views

How would one change 'ich habe' to be in the past tense?

Ich habe = I have We need to arrive at 'Ich habe gehabt' through Auxiliary + Past Participle The two most common and irregular verbs which need to be memorised are 'habe...

AA
Answered by Anna A. German tutor
1983 Views

Work out (2^34) / (2^3)^10

Work out 234/(23)10 (23)10= 230 234/230= 24 = 16

TS
Answered by Tom S. Maths tutor
2982 Views

Why does Sodium Chloride have high melting point?

Sodium Chloride has a high melting point, as it has a giant ionic lattice hence has strong electrostatic forces of attraction between oppositely charged ions, which requires lots of energy to overcome the...

VS
3634 Views

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