Question

c.
2ab - 3642
d. 7xyz - 2x + 4y - 8z + xy, if x = 2, y = 1 and z = 5​

Answer 1

Answer:

x increased by 12 is (x+12).

(ii) y decreased by 7 is (y-7).

(iii) The difference of a and b, when a>b is (a-b).

(iv) The product of x and y is xy.

The sum of x and y is (x+y).

     So, product of x and y added to their sum is xy+(x+y).

(v) One third of x is x3.

The sum of a and b is (a+b).

     ∴ One-third of x multiplied by the sum of a and b = x3×(a+b)=x(a+b)3  

(vi) 5 times x added to 7 times y = (5×x)+

Step-by-step explanation:

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