Question

if a=2 b=4 c=7 then a(3a-9c+4b) is??? option a.74 b.-74 c.178 d.-178
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Answer 1

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Given values :-

• a = 2
• b = 4
• c = 7

Find the value of :-

• a(3a-9c+4b)

solution :-

➡ a(3a-9c+4b)

➡2( 3× 2 - 9× 7 + 4× 4)

➡ 2( 6 -63+ 16 )

➡2(-41)

➡ -82

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Here is mistake in option please check it

Answer 2

Step-by-step explanation:

2(3×2-9×7+4×4)

2(6-63+16)

2(22-63)

2× -41

–82