Question

If * is an operation such that
a x b = ab + 2b-3, find 4* 5.​

Answer 1

Answer:

27

Step-by-step explanation:

ab+2b-3

=4×5+2×5-3

=20+10-3

=30-3

=27

Answer 2

Step-by-step explanation:

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= ab + 2b - 3

= 4 × 5 + 2 × 5 - 3

= 20 + 10 - 3

= 30 - 3

= 27 Ans.