Question
Find following products:
$ (4 x+5 y)(4 x+5 y) $
$ (4 x+5 y)(4 x+5 y) $
✓
Answer
$ (4 x+5 y)(4 x+5 y) $
$ =(4 x+5 y)^2 $
$ =(4 x)^2+2 \times 4 x \times 5 y+(5 y)^2 $
$ =16 x^2+25 y^2+40 x y $
$ =(4 x+5 y)^2 $
$ =(4 x)^2+2 \times 4 x \times 5 y+(5 y)^2 $
$ =16 x^2+25 y^2+40 x y $
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the figure, find the value of $x$.
→Evaluate the following:$\frac{7}{24}-\frac{19}{36}$
→Find the height of the cylinder whose volume is $1.54 m^3$ and diameter of the base is 140 cm ?
→Factorize of the following expressions: $ax + ay - bx - by$
→Look at the shapes given below and state these are polyhedra using Euler’s formula.
If $60 \%$ people in a city like cricket, $30 \%$ like football and the remaining like other games, then what percent of the people like other games? If the total number of people are 50 lakh, then find the exact number who like each type of games.
→Verify the following: $\frac{2}{-7}+\frac{12}{-35}=\frac{12}{-35}+\frac{2}{-7}$
→Find the division:$ 7x^2y^2z^2\div 14xyz$
→→
Express $\frac{1.5\times10^6}{2.5\times10^{-4}}$ in the standard form.
→