Question

Find the product of (2a+3b) and (4a+5b). If a=4 and b=-2, what is the value of product​

Answer 1

Answer:

$(2 \times 4 + 3 \times - 2) \times (4 \times 4 + 5 \times - 2) \\ (8 - 6) \times (16 - 10) \\ 2 \times 6 = 12$

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Answer 2

Answer:

12

Step-by-step explanation:

2a+3b=2*4+3*(-2)=8-6=2

4a+5b=4*4+5*(-2)=16-10=6

the product is 2*6=12