If x = 3 and y = 5, work out the value of a) 4x - 2y
b) 2x2 + 3y2
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Answer:
A) 12-10
B)36+225
Step-by-step explanation:
A) 3x4=12, 5x2= 10= 12-10
B) 3x2=6x6=36, 3x5=15x15=225=36+225