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Hitman42 [59]
3 years ago
8

Expand and simply a) 2(4c+5d)+3(c-3d) b) 6(3m+n)-4(m-n)​

Mathematics
1 answer:
dezoksy [38]3 years ago
3 0

Answer:

a. 11x + d

b. 15m + 10n

Step-by-step explanation:

a. 2(4c+5d) + 3(x-3d)

Break the brackets:

2*4c + 2*5d + 3*x - 3*3d

= 8x + 10d + 3x - 9d

Collect like termsL

= 8x + 3x + 10d - 9d

= 11x + 1d

b. 6(3m+n) - 4(m-n)

Break the brackets:

= 6*3m + 6*n - 3*m - 4*(-n)

= 18m + 6n - 3m - (-4n)

= 18m -3m + 6n + 4n

= 15m + 10n

Hope this helped :3

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nataly862011 [7]

The expression for 7 less than the product of a number and 8, increased by a number multiplied by 2 is 8n-7 +2n

Given :

7 less than the product of a number and 8, increased by a number multiplied by 2

We need to write the given statement in an expression

Lets 'n' be the unknown number

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the product of a number and 8 mean n times 8 that is 8n

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Learn more : brainly.ph/question/1023996

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<h2>~AnonymousHelper1807</h2>
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