Subtract the sum of 3l−4m−7n2 and 2l+3m−4n2 from the sum of 9l+2m−3n2 and −3l+m+4n2........
Subtract the product of 312 and 25 from 75.
Which of the following are not true? i) 3(13) = √3−3 ii) 3(12) = √32 iii) 3−2 = √3 iv) 3(12) = √3