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Factorise the following expressions :​

Factorise The Following Expressions class=

Sagot :

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Answer:

(l² + 2m²)²

Step-by-step explanation:

l⁴ + 4l²m² + 4m⁴

=(l²)² + 2 x l² x 2m²+ (2m²)²

Now this is in the form of (a + b)² = a² + 2ab + b² so we get

= (l² + 2m²)²

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Answer:

(l²+2m²)²

Step-by-step explanation:

to understand this

you need to know about:

  • factoring

tips and formulas:

  • (a+b)²=a²+2ab+b²

let's solve:

  1. rewrite:(l²)²+2.l².2m²+(2m²)²
  2. use the formula:(l²+2m²)²
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