Answer:
(3x + 1)²
Step-by-step explanation:
Given
9x² + 6x + 1 ← is a perfect square of the form
(ax + b)² = a²x² + 2abx + b²
Compare like terms to find a and b
a²x² = 9x² ⇒ a² = 9 ⇒ a = = 3
b² = 1 ⇒ b = = 1
and 2ab = 2 × 3 × 1 = 6
Thus
9x² + 6x + 1 = (3x + 1)²
Answer:
Length of NM is 36 cm
Step-by-step explanation:
Length of MN + Length of NO = Length of MNO (Or only MO)
cm
Thus, length of MN is equal to length of NO i.e 36 cm
The line MNO has point N, that bisect it into two equal half.
Thus, the line MNO has two parts
Total length of line MNO = MN + NO = cm