Math, asked by pramilarakesh808, 3 months ago

Find the value
of a
if the value of
2x²+x-a=6, when x = -1

Answers

Answered by maryamnazirch2000
1

Answer:

a= -5

Step-by-step explanation:

just put on the value of x ..nd that's it

Attachments:
Answered by yakshitakhatri2
5

\huge\rm\underline\color{peru}{ᗒANSWERᗕ}

∴2 {x}^{2}  + x - a = 6

\sf\underline{put,x =  - 1 \: in \: above \:  {eq}^{n} }

∴2 {( - 1)}^{2}  + ( - 1) - a = 6

 =  > 2(1) - 1 - 6 = a

 =  > 2 - 7 = a

{\sf{\underline{\underline\bold{∴a =  - 5}}}}

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# 5 ᴛʜᴀɴᴋꜱ ᴘʟᴢ ❤️

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