式の加法・減法(整数)4(6問)
計算せよ。
(4x2+9x-15)+(9x2-11x+17)
解答○ ×(3xy-5x-7y)-(4xy+6x-16y)
解答○ ×(11a2-7a+4)-(8a2-19a-14)
解答○ ×(6ab+5a+3b)+(-4ab-7a+9b)
解答○ ×(5x3-2x2+7x)-(20x3-8x2-4x)
解答○ ×(4x2-6xy-9y2+6)-(-7x2+11xy-5)
解答○ ×問題と解答
(4x2+9x-15)+(9x2-11x+17)13x2-2x+2 (3xy-5x-7y)-(4xy+6x-16y)-xy-11x+9y (11a2-7a+4)-(8a2-19a-14)3a2+12a+18 (6ab+5a+3b)+(-4ab-7a+9b)2ab-2a+12b (5x3-2x2+7x)-(20x3-8x2-4x)-15x3+6x2+11x (4x2-6xy-9y2+6)-(-7x2+11xy-5)11x2-17xy-9y2+11
