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5.
2.
Write suitable equations to the following to solve them by using the square fillingmethod.
x2 + 5x = 10
b. X 18.7 = 25
c. 21+16.x = 100
d. 3x? + 18x = 60
e. 5x2 - 6x = 80
f. 4x2 + 12x = 40
g. 1-11.x = 60
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Step-by-step explanation:
Q3) Pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.
(a) 5m=60 (10, 5, 12, 15)
(b) n+12=20 (12, 8, 20, 0)
(c) p–5=5 (0, 10, 5, –5)
(d) \frac{q}{2}
2
q
= 7 (7, 2, 10, 14)
(e) r–4=0 (4, –4, 8, 0)
(f) x+4=2 (–2, 0, 2, 4)
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