1.3ab+4a-12,when a=3 and b=_4
2.5m²-3n,when m=2 and n=4
3.3(p-2q),when p=5 and q =7
4.x²-3 when x=-4 and y=3
————
y²
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2.5m²-3n,when m=2 and n=4
3.3(p-2q),when p=5 and q =7
4.x²-3 when x=-4 and y=3
————
y²
Thank u if someone Answer!
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Answer:
1.) 3(3)(4)+4(3)-12
3(12)+12-12
36+12-12
36
2.) 5(2)²-3(4)
5(4)-3(4)
20-12
8
3.) 3(5-2(7))
3(5-14)
3(-7)
-21
4.) -4²-3/3²
16-3/9
13/9