Find the values of a and b if 7-315 = a + bvs 743.5
O 47/2, -21/2
O-47/2,-21/2
O 1,1 O 21/2,-47/2
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Step-by-step explanation:
b = a ab = a² ab - b² = a²-b² b(a - b) = (a + b)(a - b) b= a + b b= b + b b= 2b 1= 2 where is the mistake there are 2 mistakes ?
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