Question

ajuda pls presiso urgente

Answer 1

A) ײ-100=0

X²=100

×= raiz de 100

X= 10

B)4ײ=9

ײ=9÷4

X= raiz de 2,25

X=1,5

C)ײ-10=0

ײ=10

×=raiz de 10

X=3,1622776602

D)-ײ+49=0

-ײ=49

×=raiz de 49

X=7

2)3x²+15×=0

X×(3×+15

3x=-15÷3

×=-5

S{0,-5

B)5x²-3×=0

X×(5×-3

5×=3

×=3÷5

X=0,6

S{0, 0,6}

C)ײ-12×=0

×(×-12=0

×=12

S{0,12}