Factorise the expression: am^2 + bm^2 + bn^2+an^2
1 answer:
Answer:
( a+b) ( m^2 + n^2)
Step-by-step explanation:
factorise like terms
m^2 ( a + b ) + n^2 ( m^2 + n^2)
then put like terms together put remaining terms in a bracket
( a + b) ( m^2 + n^2 )
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Step-by-step explanation:
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Answer:
f. none of the above
Step-by-step explanation:
90 + 63 = 153
180 - 153 = 27
∠A = 27°
