Math, asked by lisa41, 1 year ago

answer question no. 24. please answer me because day after tomorrow is my Exam​

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Answers

Answered by liza10987654321
4
hey mate ‼️‼️

ur solution is in the attachment ⤴️⤴️

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#follow me
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lisa41: thanks
mysticd: a = 5 , p(-2) = 62 , plz ,edit
lisa41: thank you for answering
Answered by mysticd
1

Explanation :

Given p(x)=x⁴-2x³+3x²-ax+3a-7

i ) If p(x) divided by (x+1) the

remainder is p(-1)

p(-1) = 19 [ Given ]

=> (-1)⁴-2(-1)³+3(-1)²-a(-1)+3a-7=19

=> 1+2+3+a+3a-7=19

=> 4a-1=19

=> 4a = 20

=> a = 20/4

=> a = 5

ii )If p(x) divided by (x+2) then

the remainder is p(-2)

=> p(-2) = (-2)⁴-2(-2)³+3(-2)²-5(-2)+3×5-7

[ since , a = 5 ]

= 16+16+12+10+15-7

= 62

Therefore,

a = 5

And

p(-2) = 62

••••


vegiramu14: good job bro
lisa41: your answer is right
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