the value of expression 7A -4 B from a is equals to 3 and b is equals to 2 is
Answers
Answered by
1
Answer:
13
Explanation:
(7×3)-(4×2)=21-8= 13
Answered by
0
Explanation:
Substituting
b
=
7
in the expression:
−
3
b
2
+
25
=
−
3
(
7
)
2
+
25
=
−
3
⋅
49
+
25
=
−
147
+
25
=
−
122
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