Simplify (221a222122)^2 , This Question Is From Class 9 "Chapter 1 - Number System"(Ncert)
Simplify (√2−2)^2 , this question is from class 9 "chapter 1 - Number System"(NCERT)
Answer:
6-4√2
Step-by-step explanation:
To find the product of or simplify a square of binomial (√2 - 2)² where:
First term of binomial ⇒ √2
Second/Last term of binomial ⇒ -2
Follow these steps:
1) Square the first term
⇒ (√2)(√2) = √4 = 2
2) Twice the product of first and last term
⇒ 2(√2)(-2) = -4√2
3) Square the last term
⇒ (-2)(-2) = + 4
4) Combine the like terms
⇒ 2+ 4 - 4√2
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