Diketahui fungsi f(x)=(3x-a)(2x+4).jika f(1)=6 ,maka nilai f(-1)=

By Admin ReiPosted on December 6, 2022

Diketahui fungsi f(x)=(3x-a)(2x+4).jika f(1)=6 ,maka nilai f(-1)=

$f(x) = (3x - a)(2x + 4) \ f(1) = (3(1) - a)(2(1) + 4) \ 6 = (3 - a)(6) \ 3 - a = 1 \ a = 3 - 1 \ a = 2 \$

$f(x) = (3x - 2)(2x + 4) \ f( - 1) = (3( - 1)- 2)(2( - 1)+ 4) \ = ( - 3 - 2)( - 2 + 4) \ = ( - 5)(2) \ = - 10$