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(b) 15 x [3 x (-12)] = (15 X 3) x - 12(d) -12 x [(-7) +5] = (-12) × (-7) + (-12) x 5 |
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Answer» -STEP explanation:B sol :15 X [3 x (-12)] = (15 X 3) x - 12LHS = 15 × [ 3 × -12 ] = 15 × - 36 = - 540RHS = ( 15 × 3 ) × - 12 = 45 × - 12 = - 540Therefore, LHS = RHS....d sol : -12 x [(-7) +5] = (-12) × (-7) + (-12) x 5LHS = - 12 × ( - 7 + 5) = - 12 × - 2 = 24RHS = (-12) × (-7) + (-12) x 5 = ( - 12 × - 7 ) + ( - 12 × 5 ) = ( 84 ) + ( - 60 ) = 84 - 60 = 24 Therefore, LHS = RHS.... |
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