Question

P(t) = 6t² = 7t² +8t+9. find the value of the Polynomial at t-3​

Answer 1

If t-3 is the solution then

$\\ \sf\longmapsto t-3=0$

$\\ \sf\longmapsto t=3$

• For t=3 ,

$\\ \sf\longmapsto P(t)$

$\\ \sf\longmapsto 6t^2-7t^2+8t+9$

$\\ \sf\longmapsto t^2+8t+9$

$\\ \sf\longmapsto 3^2+8(3)+9$

$\\ \sf\longmapsto 9+24+9$

$\\ \sf\longmapsto 18+24$

$\\ \sf\longmapsto 42$

Therefore P(t)=42