alicebushbeyene alicebushbeyene

23-12-2020
Mathematics

contestada

if ab=5 and a²+b²=25,then (a+b)² equals to.

Respuesta :

Аноним Аноним

23-12-2020

Answer:

30

Step-by-step explanation:

Given

ab=5

a²+b²=25

So

(a+b)²=a²+ab+b²

=a²+b²+ab

=25+5

=30

Answer Link

jimrgrant1 jimrgrant1

23-12-2020

Answer:

(a + b)² = 35

Step-by-step explanation:

Note the expansion of (a + b)²

(a + b)² = a² + b² + 2ab ← substitute given values

= 25 + 2(5)

= 25 + 10

= 35

Answer Link

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