0
x2 + 5x + 6¼ = (x + 2½)2 and, hence, is a perfect square.
As the co-efficient of x2 (the first term) is 1, you can safely follow this rule:
Add the square of half the co-efficient in the second term, in order to complete the square.
In this case, you take half of 5 (which is 2½) and, then, square it. This gives you your 6¼.
Still curious? Ask our experts.
Chat with our AI personalities
MaxineI respect you enough to keep it real.
Chat with Maxine
ReneChange my mind. I dare you.
Chat with Rene
ViviYour ride-or-die bestie who's seen you through every high and low.
Chat with ViviMore answers
What must be added to x²+5x to make a perfect square please help me to solve it and please show the working please I am begging you please 🙏 help me
Add your answer:
Earn +20 ptsQ: What number must be added to x2 plus 5x to complete the square?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
Find the least number which must be added to 4562 to make it a perfect square?
62
What least number must be added to 5607 to make the sum a perfect square find theperfect square of its square root?
5607 + 18 = 5625, a perfect square. The perfect square of a square root is the number you started with.
What number must you add to complete the square x2 minus 4x equals 1?
4
What number do you add to complete the square x2-19?
-17
What number must you add to complete the square of x2 12x -9?
The idea is to take half the linear part (12, in this case), then square it. The constant part must be equal to this result.
Trending Questions
What does Sulfur plus Oxygen equal?
The sum of three consecutive even integers is 138 what are the integers?
any two angles whose measures have a sum of 180° are called?
How much is money is 1000 dimes?
What is the integer for a deposit of 16?
How do you add fractions with diffrent denominators?
What happens to the number of dots per unit area as the distance of the dots go further for the center?
What is 51 rounded to the nearest 100?
What is the HCF of 65 and 78?
How can you simplify the expression 7 plus 8j plus 7-2j?
Area of irregular shape?
What is the GCF of 25 and 125?
Is the square root an exponent?
What is the algebric expression of the sum of 8 and 6 times y?
What is next in this sequence tnessf?
How many multiples of 4 are there in 50?
What numbers are between 0.04 and 0.05?
A line segment formed by the intersection of two faces?
What is 6 tenths plus 6 hundredths?
How do you write fifteen billion three hundred three thousand forty eight in numbers?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.