Math, asked by sanyuktanikkop1grf9, 1 year ago

(x-5)^2-(x+2)^2=-2

Pls help and do it step by step....req pls Do not miss any step cause i want to understand after You solve and not just copy anf paste

Answers

Answered by aditya2253812

2x-25-2x+4=-2
2x-2x=-2+25
0=23

sanyuktanikkop1grf9: wrong

aditya2253812: , but why

sanyuktanikkop1grf9: See i m not testing you i don'tve tutor but in my book it is written another ans

sanyuktanikkop1grf9: even i got 23

sanyuktanikkop1grf9: but when i checked in the book it was wrong

aditya2253812: oi

aditya2253812: what is right answer

sanyuktanikkop1grf9: 23/14

aditya2253812: ook

Answered by siddhartharao77

Given : (x - 5)^2 - (x + 2)^2 = -2

⇒ x^2 + 25 - 10x - (x^2 + 4 + 4x) = -2

⇒ x^2 + 25 - 10x - x^2 - 4 - 4x = -2

⇒ -14x + 21 = -2

⇒ -14x = -23

⇒ x = 23/14.

Hope this helps!

sanyuktanikkop1grf9: this is the ans which is given in the book

sanyuktanikkop1grf9: thanks

siddhartharao77: ok

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