Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 19
What number must be added to the expression $$16a^2 - 12a$$ to make it a perfect square?
Solution
$$16a^2 - 12a$$ = $$\left(4a\right)^2-\left(2\right)\left(4a\right)\left(\ \frac{\ 3}{2}\right)$$
by adding $$\left(\ \frac{\ 3}{2}\right)^2\ $$ we can write it as $$\left(\ 4a-\frac{\ 3}{2}\right)^2\ $$
Hence $$\left(\frac{\ 3}{2}\right)^2\ =\ \ \frac{\ 9}{4}$$ is required answer
Video Solution
Create a FREE account and get:
- All Quant Formulas and shortcuts PDF
- 170+ previous papers with solutions PDF
- Top 5000+ MBA exam Solved Questions for Free
SNAP Quant Questions | SNAP Quantitative Ability
SNAP Quadratic Equations QuestionsSNAP Progressions and Series QuestionsSNAP Functions, Graphs and Statistics QuestionsSNAP Number Systems QuestionsSNAP Linear Equations Questions
