Find the value of 915 x 885 using expansion of a²-b²
Answers
Answered by
15
Answer:
Step-by-step explanation:
a² - b² = (a+b)(a-b)
∴ 915 x 885 = (900+15)(900-15)
= 900² - 15²
= 81000 - 225 = 80875
Answered by
3
Answer:
the above answer is definetly correct
Similar questions