Math, asked by thotasailaja198, 1 year ago

find the square of the following number without actual multiplication?39

Answers

Answered by Irfan678

21

I hope you will understand .

Attachments:

Answered by anasshaikh25

9

Answer:

=39² = (30+9)²

=30²+9²+2×30×9

=900+81+540

=1521

Previous Question

Next Question

Similar questions

Math, 8 months ago

2²- 4⁴ ÷ 3⁵(3+5) = ?

Math, 8 months ago

solve they equation k by 1.5 k== please solve it...

Math, 8 months ago

write the mearsure adjecent side,opposite side and hypotenus of a angle A...

Physics, 1 year ago

When a weight of 100g is hung on a spring the length of the spring is 9cm and when 150g is hung the length is 11cm.so what is the length if there is no weight on it...

Science, 1 year ago

types of plants and animals on the basis of their habitats...

English, 1 year ago

summarise the environmental concern of the Red Indians...

Math, 1 year ago

plz answer these. its urgent. ... plz help me...

Science, 1 year ago

Explain the digestive of ruminant...