A Number That Must Be Added To X\Xb2- 15x To Make It Perfect Square Trinomial
A number that must be added to x²- 15x to make it perfect square trinomial
Answer:
225/4
Step-by-step explanation:
Perfect square trinomial:
ax² + bx + (b/2)²
or
ax² + (b/a)x + (b/a)(1/2)²
Given:
x²- 15x
a = 1
b = -15
x²- 15x + (-15/2)²
x² - 15 + (225/4)
Comments
Post a Comment