Is (–15) × [(–7) – (–1)] = (–15) × (–7) – (–15) × (–1)?
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144
(–15) × [(–7) – (–1)]
= (-15) × [-7+1]
= (-15) × (-6)
= 90
(–15) × (–7) – (–15) × (–1)
= 105 - 15
=90
Yes (–15) × [(–7) – (–1)] = (–15) × (–7) – (–15) × (–1)
= (-15) × [-7+1]
= (-15) × (-6)
= 90
(–15) × (–7) – (–15) × (–1)
= 105 - 15
=90
Yes (–15) × [(–7) – (–1)] = (–15) × (–7) – (–15) × (–1)
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Yes, (–15) × [(–7) – (–1)] = (–15) × (–7) – (–15) × (–1) , the given equation is true.
Given :
The equation (–15) × [(–7) – (–1)] = (–15) × (–7) – (–15) × (–1)
To find :
To prove the equation
Solution :
L.H.S
(–15) × [(–7) – (–1)]
R.H.S
(–15) × (–7) – (–15) × (–1)
Solving L.H.S ,
(–15) × [(–7) – (–1)]
= (-15) × [(-7)+1]
= (-15) × (-6)
= 90
Solving R.H.S ,
(–15) × (–7) – (–15) × (–1)
= 105 - 15
= 90
Hence, L.H.S = R.H.S (proved)
Yes, (–15) × [(–7) – (–1)] = (–15) × (–7) – (–15) × (–1) , the given equation is true.
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