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Svetllana [295]
3 years ago
15

Factorise the following expressions :​

Mathematics
2 answers:
bekas [8.4K]3 years ago
6 0

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

sveta [45]3 years ago
5 0

Answer:

<h2>(l²+2m²)²</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • factoring
<h3>tips and formulas:</h3>
  • (a+b)²=a²+2ab+b²
<h3>let's solve:</h3>
  1. rewrite:(l²)²+2.l².2m²+(2m²)²
  2. use the formula:(l²+2m²)²
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