The area of a square is found by squaring one of its sides, (A = s 2). A certain square has an area of z 2 + 18z + 81. Factor the trinomial to find a side of the square.

Question

anonymous · Answer

side = z + 27


side = z + 18


side = z + 9

chosenmatt · Answer

welcome to openstudy

zpupster · Answer

we need the factors of 81

1                       81
1  3               27   81
1  3   9     27     81     these are the factors


lets split the z^2

(z                (z

what factors of 81 above add to get  +18?