Let♣m=m2+10.Whichofthefollowingisequalto♣(♣2)?Let♣m=m2+10.Whichofthefollowingisequalto♣(♣2)?(A)♣10(B)2(♣10)-14(C)(♣4)+200(D)♣196(E)♣206♣m=m^2+

Question

Let ♣m = m2 + 10.Which of the following is equal to ♣(♣2)?
Let ♣m = m2 + 10.Which of the following is equal to ♣(♣2)?
(A) ♣10
(B) 2(♣10) - 14
(C) (♣4) + 200
(D) ♣196
(E) ♣206
♣m = m^2 + 10.Which of the following is equal to ♣(♣2)?

Answer 1

因为♣m=m²+10
所以♣(♣2)=♣14=14²+10=206
选项A ♣10=10²+10=110
选项B 2(♣10)-14=2×110-14=206
选项C (♣4)+200=226
选项D ♣196=38426
选项E ♣206=42446
只有B等于206,所以选B