Math, asked by AgreatMatt, 1 year ago

(3x + y - 5) (3x - y - 5) solve using algebraic identity

Answers

Answered by Sanjana111111

HOPE THIS WILL HELP U :)

Attachments:

HarishAS: Wrong answer.

Sanjana111111: howw

HarishAS: y-5 is not b.

HarishAS: U used identity wrongly.

Sanjana111111: then wht is b??

HarishAS: b is just y.

HarishAS: and a = 3x-5

Answered by KunalTheGreat

HI,
=============
Question (3x+y−5)(3x−y−5)

Formula :-
(a+b)(a-b) =a^2-b^2

→(3x)^2 -(y-5)^2

→9x^2-(y^2+25-10y)

→9x^2-y^2-10y+25 AnsR

===============================
:-)

KunalTheGreat: wrong

KunalTheGreat: sorry not mine but yours

AgreatMatt: bro algebraic identity

KunalTheGreat: yep

Sanjana111111: my ans is right or wrong??

AgreatMatt: i dont know i doesn't have the answer but you have multiplied you have to use identity

Sanjana111111: i have used the identity see

HarishAS: Brou didn't use identity.

HarishAS: @kunal the great.

KunalTheGreat: oh

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