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  • 2.The result of 9y -5y is always 4對么?

    2.The result of 9y -5y is always 4對么?
    3.The result of 4x - 4y is always 8xy對么?
    4.If x is an integer,the value of the expression 2x+1 must be odd對么?
    5.If P=4a+2b,when a=4 and b=3,P=22對么?
    1.-6 is greater that -4對么?
    2.The sum of 2 negative numbers must be positive對么?
    4.The product of 2 negative numbers must be positive對么?
    請將下面的進(jìn)行復(fù)制然后作答(謝謝大家!):
    2.()
    3.()
    4.()
    5.()
    1.()
    2.()
    4.()
    空格里可以用中文寫“對或不對”也可以用英文寫“correct or incorrect”
    數(shù)學(xué)人氣:163 ℃時(shí)間:2020-04-21 00:29:05
    優(yōu)質(zhì)解答
    2.The result of 9y -5y is always 4對么?【錯(cuò),取決于y的取值】
    3.The result of 4x - 4y is always 8xy對么?【錯(cuò)】
    4.If x is an integer,the value of the expression 2x+1 must be odd對么?【對的】
    5.If P=4a+2b,when a=4 and b=3,P=22對么?【對的】
    1.-6 is greater that -4對么?integer【錯(cuò)】
    2.The sum of 2 negative numbers must be positive對么?【錯(cuò),還是負(fù)數(shù)】
    4.The product of 2 negative numbers must be positive對么?【對的,負(fù)負(fù)得正】
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