Math, asked by saad2159, 1 year ago

if 3 is 0 of the polynomial p(x)=2x sq- 5x+7a find the value of a

Answers

Answered by Anonymous

$hello \: mate$

Substituting x=3 in the given equation,

➡2x²-5x+7a=0

➡2(3)²-5(3)+7a=0

➡18-15+7a=0

➡3+7a=0

➡7a= -3

➡a= -3/7

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Answered by simmi9955

P(3)=(2×3)^2-5×2-7a=0

=6^2-10-7a=0

=36-10-7a=0

26-7a=0

=-7a=-26

=7a=26

=a=26/7

=3.71

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saad2159: i will send u more questions of maths

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