Add the following
2a+3b-4; 8a+10b+13
Simplify the following : (i)(5a−8b)2−(5a+8b)2 (ii)(2a+3b)2−((2a+3b)(2a−3b)) [4 MARKS]
Add 2a+3b+c+d, −a+b−c−d and 3a−4b−2c−2d. [3 MARKS]
Simplify:
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(10)