Answer:
×=7
Step-by-step explanation:
(×+5)(×-3)
ײ2 +5×-3×-15 =48
ײ2 + 2×-63=0
(×+9)(×-7)=0
× =-9 or 7 since a length cannot be negative:
length=7+5=12 cm
width=7-3=4 cm
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Answer:
×=7
Step-by-step explanation:
(×+5)(×-3)
ײ2 +5×-3×-15 =48
ײ2 + 2×-63=0
(×+9)(×-7)=0
× =-9 or 7 since a length cannot be negative:
×=7
length=7+5=12 cm
width=7-3=4 cm