12x4 - 42x6 = 6x4 (2 - 7x2)
40*5=200
42x6x1.3 Step one:multiply from left to right:42x6 252x1.3 Step two:multiply 252x1.3 finaly answer=372.6
Limitations of the browser used by WA means that we cannot see most symbols. If that's addition, the answer is 6x4(7x2 + 2) If that's subtraction, the answer is -6x4(7x2 - 2)