选出与其意思相符的图片( )
A:
B:
C:
若x的值满足2x2+3x+7=8,则4x2+6x﹣9=____
My elder brother my wet sports shoes and made me sit by the fire.
阅读程序框图(如图),如果输出的函数值在区间14,1上,则输入的实数x的取值范围是( )