VjMegawoodice
VjMegawoodice
02-09-2016
Mathematics
contestada
Factorise completely: 9x2 + 42x + 49
Respuesta :
HomertheGenius
HomertheGenius
11-09-2016
This is a perfect square trinomial:
9 x² + 42 x + 49 = ( 3 x )² + 2 · 3 x · 7 + 7² =
= ( 3 x + 7 )² =
( 3 x + 7 ) · ( 3 x + 7 )
Answer Link
leviroeck
leviroeck
03-03-2020
Answer:
i think the answer is (3x + 7)(3x + 7)
Step-by-step explanation:
Answer Link
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