Question

What should be value of a if
y2+y -a equal to 3 for y=1
a.-1
b.-5
c.5
d.o​

Answer 1

Answer:

A). -1

Step-by-step explanation:

y² + y -a = 3

(1)² + (1) - a = 3

1+1 -a = 3

2-a = 3

-a = 3 - 2

-a =  1

a = -1

Answer 2

Given:

y² + y - a = 3

y = 1

To Find:

Value of 'a'.

Solution:

y² + y - a = 3

The value of y is given to be equal to 1. therefore,

(1)² + (1) - a = 3

1 + 1 - a = 3

2 - a = 3

-a = 3 - 2

-a = 1

a = -1

The value of 'a' should be -1.