Advertisements
Advertisements
Question
In the case find whether the trinomial is a perfect square or not:
a2 - 10a + 25
Sum
Solution
a2 - 10a + 25
= (a)2 - 2 × a × 5 + (5)2
= (a - 5)2 [∵ a2 - 2ab + b2 = (a - b)2]
∴ The given trinomial a2 - 10a + 25 is a perfect square.
shaalaa.com
Factorising a Perfect Square Trinomial
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
In the case find whether the trinomial is a perfect square or not:
x2 + 14x + 49
In the case find whether the trinomial is a perfect square or not:
4x2 + 4x + 1
In the case find whether the trinomial is a perfect square or not:
9b2 + 12b + 16
In the case find whether the trinomial is a perfect square or not:
16x2 - 16xy + y2
In the case find whether the trinomial is a perfect square or not:
x2 - 4x + 16
