—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?”
— .
| A．Forty-fifth | B．Forty-five |
C．Twenty-three | D．One hundred and twenty-one |
—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?”
— .
| A．Forty-fifth | B．Forty-five |
C．Twenty-three | D．One hundred and twenty-one |
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