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Anuradha Chikane asked in Math

Solve this:

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Shruti Tyagi answered this

Dear student,

20 a) xx2+3x+5+7=x3+3x2+5x+7i) Putting x=-1=(-1)3+3(-1)2+5(-1)+7=-1+3-5+7=-1-5+3+7=-6+10=4Similarly you can solve (ii) partb) 4y3y-8-10=12y2-32y-10i) Putting y=2 =1222-322-10=12×4-64-10=48-64-10=-16-10=-26Similarly you can solve (ii) part

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