2 years ago

(m+3n) ^2 please help me solve this question, I really need it

Mathematics

1 answer:

Charra [1.4K]2 years ago

7 0

Answer:

=m2+6mn+9n2

Step-by-step explanation:

=(m+3n)(m+3n)

=(m)(m)+(m)(3n)+(3n)(m)+(3n)(3n)

=m2+3mn+3mn+9n2

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katen-ka-za [31]

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How do you do this i totaly forgot.

vagabundo [1.1K]

Step-by-step explanation:

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Then square root 113 which is 10.63 to 2.d.p

So x=10.63

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