Question

If
a
=
-2
,
find
the
values
of
the
following
polynomials
.
(i) 2a +4
(ii) 7-3a
​

Answer 1

Answer:

(1) 0

(2) 13

Step-by-step explanation:

(1) 2a+4

=2*-2+4

=-4+4

=0

(2) 7-3a

=7-3*-2

=7-(-6)

=7+6

=13

not hope it really helps u dear ☺

Answer 2

$\bigstar$Question:

• If a = (-2), then find the value of

(I) 2a + 4 (II) 7 - 3a

$\bigstar$Solution:

Let's put the Value of a in both the equations.

(I) 2a + 4

$\implies$ 2(-2) + 4

( By putting value of a)

$\implies$ (-4) + 4

= 0

(II) 7 - 3a

= 7 - 3(-2)

= 7 + 6

= 13

$\bigstar$Answer:

Therefore, the value of first equation is 0 and in the second equation, it is 13.