Question

1.x2-49
2.2r4-8
3.[m+n]2-9
4.p4-q4

Answer 1

1. x² - 49 = ( x + 7 ) ( x - 7 )
2. 2r⁴ - 8 = 2 ( r⁴ - 4 ) = 2 ( r + 2 ) ( r - 2 )
3. soalnya aku kurang ngerti tapi kyak gini bukn ( m + n ) 2 - 9 = ( m + n ) ( - 7 )
= - 7m - 7n = 7m + 7n
4. p⁴ - q⁴ = ( p² + q² ) ( p² - q² )