Plz tell 9th question it's urgent
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Muskan5785:
no we can5
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Answered by
4
first put x= (1/2)
= 3(1/2)^2-4(1/2)+7
= 3/4-2+7
= 3-8+28/4
=23/4
secondly put x = -2
= 3(-2)^2-4(-2)+7
= 12+8+7
= 27
hope it helps you
= 3(1/2)^2-4(1/2)+7
= 3/4-2+7
= 3-8+28/4
=23/4
secondly put x = -2
= 3(-2)^2-4(-2)+7
= 12+8+7
= 27
hope it helps you
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Answered by
4
bonjour dear!
question:- IF P(X) = 3X²-4X+7 FIND P(1/2) AND P(-2)
ANSWER
FIRST STEP U NEED TO TAKE P(1/2)
THEN, U NEED TO SUBSITUTE 1/2 IN THE PLACE OF X
⇒P(X) = 3X²-4X+7
⇒P(1/2) = 3*(1/2)² - 4*1/2 +7
⇒ 3*1/4 - 2 +7
⇒ 3/4 - 2 +7
⇒ 3/4 + 5
SO NOW WE SHOULD TAKE LCM ↓
⇒3*1/4*1 + 5*4/1*4
⇒ 3/4 +20/4
⇒ 23/4
2ND STEP WE SHOULD P(-2)]
SUBSITUTE -2 IN THE PLACE OF X
P(X) = 3X²-4X+7
P(-2) = 3*(-2)² - 4*-2 +7
= 3*4 + 8 +7
= 12+8+7
⇒ 27
HOPE THIS HELPS
KEEP SMILING
:)
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