Factorise 2x2 - 3x - 2-2 Marks-

2x2 nbsp;– 3x – 2 = 2x2 nbsp;– 4x + x – 2 [1 Mark] = 2x (x – 2) + 1 (x – 2) = (x – 2) (2x + 1) [1 Mark] ...

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Standard VIII

Mathematics

Factorisation by Common Factors

Factorise 2x2...

Question

Factorise 2x² – 3x – 2.
$[2 M a r k s]$

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Solution

2x² – 3x – 2
= 2x² – 4x + x – 2
$[1 M a r k]$

= 2x (x – 2) + 1 (x – 2)

= (x – 2) (2x + 1)
$[1 M a r k]$

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Factorise 2x2 – 3x – 2. [2 Marks]

2x2 – 3x – 2 = 2x2 – 4x + x – 2 [1 Mark] = 2x (x – 2) + 1 (x – 2) = (x – 2) (2x + 1) [1 Mark]

Factorise 2x² – 3x – 2.
$[2 M a r k s]$

2x² – 3x – 2
= 2x² – 4x + x – 2
$[1 M a r k]$

= 2x (x – 2) + 1 (x – 2)

= (x – 2) (2x + 1)
$[1 M a r k]$