Question
Multiply $: 2x + y$ and $x + 3y$
✓
Answer
$(2x + y) \times (x + 3y)$
$= x \times (2x + y) + 3y \times (2x + y)$
$= 2x^2 + xy + 6xy + 3y^2$
$= 2x^2 + 7xy + 3y^2$
$= x \times (2x + y) + 3y \times (2x + y)$
$= 2x^2 + xy + 6xy + 3y^2$
$= 2x^2 + 7xy + 3y^2$
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
The total population of a village is 3540, out of which 2065 are males. Find the ratio of males to females.
Draw a line segment OA = 5 cm. Use set-square to construct angle AOB = 60°, such that OB = 3 cm. Join A and B; then measure the length of AB.
Solve: $7(3 x-1)-6(2 x+3)=8(x-2)+1$
→Find the sum : 96 + (-103)
Add: $-2 b, b,-3 b$
→Estimate the following product by rounding off the first number correct to nearest ten and the other number correct to nearest hundred:
72 x 258
72 x 258
Describethe following set in set-builder form :
$F =\{41,43,47,53,59,61,67,71,73\}$
→$F =\{41,43,47,53,59,61,67,71,73\}$
Solve:
1 x 9 + 1 = 10
12 x 9 + 2 = 110
123 x 9 + 3 = 1110
1 x 9 + 1 = 10
12 x 9 + 2 = 110
123 x 9 + 3 = 1110
Name the angles. Also name the vertex and the arms :
