Answer:
45
Step-by-step explanation:
basically what we are trying to find is x + 4= square
for you to understand this better, take eg 5.
5 + <u>4</u> = <u> 9</u>
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<em>four less</em> than the square number( 9 is the square of 3)
we took the square of 3 and subtracted 4 from it making the result 4 less
12 + 4 = 16
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<em>four less</em> than the square number( 16 is the square of 4)
we took the square of 4 and subtracted 4 from it making the result 4 less
understanding that,
a)3
3 + 4 = 7
there is no square root of 7 <u>X</u>
b)20
20 + 4 = 24
there is no square root of 24 <u>X</u>
c)37
37 + 4 = 41
there is no square root of 41 <u>X</u>
d) 45
45 + 4 = 49
the square root of 49 = 7
<u>answer=49</u>