式の値L1-2-6(6問)
x=-23,y=14のとき、次の式の値を求めよ。
5x-6y+2+4(3x+5y+1)
解答○ ×8x+7y-1-5(2x-3y+4)
解答○ ×-52(4x-6y-4)+13(6x+3y+12)
解答○ ×13(6x+5y-1)-34(x-2y-3)
解答○ ×54(2x2-6y2+xy)+16(3x2+5y2-9xy)
解答○ ×-65(13x2y-518xy2-252)+73(2110x2y+5xy2-3)
解答○ ×問題と解答
5x-6y+2+4(3x+5y+1)-116 8x+7y-1-5(2x-3y+4)-856 -52(4x-6y-4)+13(6x+3y+12)703 13(6x+5y-1)-34(x-2y-3)158 54(2x2-6y2+xy)+16(3x2+5y2-9xy)2324 -65(13x2y-518xy2-252)+73(2110x2y+5xy2-3)8
