(6х-11)(6х+11)-36х²+7х+32 при х=20

(6х-11)(6х+11)-36х²+7х+32 при х=20 (6х-11)(6х+11)-36х²+7х+32 = 36х²+66х-66х+121-36х²+7х+32=7х+153=7*20+153=140+153=293