Question

without finding the square of the numbers find the value of 131 square subtracted by 130 square​

Answer 1

Answer:

answer is 261

Step-by-step explanation:

(130+1)^2 -130^2

(a+b)^2=a^2+b^2+2ab

130^2+1+2×130-130^2

130^2+261-130^2

=261