a) Xac dinh he so m de da thuc A(x) = mx2_2x co nghiem la 3
b) Chung to da thuc sau khong co nghiem
B(x) = x2+4x+10
Tim he so a cua da thuc M(x)= ax2 +5x -3 biet rang da thuc nay co 1 nghiem la 1/2
Tim he so b de da thuc f(x) = 3x2 - bx - 8 co nghiem la -2
Tim he so a cua da thuc A(x)=ax^2+5x-3, biet rang da thuc co 1 nghiem bang 1/2?
***Can tim dap an dung, cac anh chi giai giup em a
bn oi giup mk mk tk cho
tim he so a cua da thuc M(x) = ax^2 +5x-3, biet rang da thuc nay co 1 nghiem là 1/2
tìm a de da thuc f(x)=2(ax-3)+4 co nghiem la -1
tim gia tri cua m de:
Da thuc F(x)=m.x3+x2+x+1 co nghiem la -1
Chung to rang da thuc f(x) co tong cac he so cua cac hang tu bac chan bang tong cac he so cua cac hang tu bac le Thi x=-1 la not nghiem cua da thuc
Tim a de da thuc \(F\left(x\right)=ax^2+5x-2\) va da thuc \(G\left(x\right)=x+2\)co chung mot nghiem