Question

(1).r? + 4x - 5 = 0, x= 1, -1​

Answer 1

Step-by-step explanation:

p(x)=4x-5

p(1)=4×1-5

p(1)=4-5

=-1

p(×)=4x-5

p(1)= 4×(-1)-5

p(1)=-4-5

=-9