来自偶春生的问题
帮我算算,76-4(x-1)〔10+2(x-1)〕
帮我算算,
76-4(x-1)〔10+2(x-1)〕
1回答
2020-04-22 18:58
帮我算算,76-4(x-1)〔10+2(x-1)〕
帮我算算,
76-4(x-1)〔10+2(x-1)〕
76-4(x-1)〔10+2(x-1)〕
=76-4(x-1)(10+2x-2)
=76-4(x-1)(8+2x)
=76-4(2x^2+6x-8)
=76-8x^2-24x+32
=-8x^2-24x+98